Back to GetFilings.com

Use these links to rapidly review the document
iBASIS, INC.

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

FOR ANNUAL AND TRANSITION REPORTS
PURSUANT TO SECTIONS 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

(Mark One)

For the fiscal year ended December 31, 2003

OR

For the transition period from                                  to                                 

Commission file number: 000-27127

iBasis, Inc.

(Exact name of registrant as specified in its charter)

20 Second Avenue, Burlington, MA 01803
(Address of principal executive offices, including zip code)

(781) 505-7500
(Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:
None

Securities registered pursuant to Section 12(g) of the Act:

Common Stock, $0.001 par value per share

(Title of Class)

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ý    No o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-X is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. o

Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Act). Yes o No ý

The aggregate market value of the registrant's common stock, $0.001 par value per share ("Common Stock"), held by non-affiliates of the registrant as of June 30, 2003 was approximately $50,991,000 based on 38,052,803 shares held by such non-affiliates at the closing price of a share of Common Stock of $1.34 as reported on the OTC Bulletin Board on such date. Affiliates of the Company (defined as officers, directors and owners of 10 percent or more of the outstanding share of Common Stock) owned 6,603,826 shares of Common Stock outstanding on such date. The number of outstanding shares of Common Stock of the Company on February 13, 2004 was 45,075,425.

DOCUMENTS INCORPORATED BY REFERENCE

 Portions of the Registrant's definitive Proxy Statement to be delivered to stockholders in connection with the Annual Meeting of Stockholders to be held on May 24, 2004, are incorporated by reference into Part III hereof. With the exception of the portions of such Proxy Statement expressly incorporated into this Annual Report on Form 10-K by reference, such Proxy Statement shall not be deemed filed as part of this Annual Report on Form 10-K.

iBASIS, INC.

FORM 10-K
For the Year Ended December 31, 2003

This annual report on Form 10-K and the documents incorporated by reference contain forward-looking statements based on current expectations, estimates and projections about iBasis' industry and management's beliefs and assumptions. In some cases you can identify these statements by forward-looking words such as "anticipate," "believe," "could," "estimate," "expect," "intend," "may," "should," "will," and "would" or similar words. You should read statements that contain these words carefully because they discuss future expectations, contain projections of future results of operations or of financial position or state other "forward-looking" information. The important factors listed in the section captioned "Risk Factors," as well as any cautionary language in this annual report, provide examples of risks, uncertainties and events that may cause the actual results to differ materially from the expectations described in these forward-looking statements. You should be aware that the occurrence of the events described in these risk factors and elsewhere in this annual report could have an adverse effect on the business, results of operations and financial position of iBasis.

Any forward-looking statements in this annual report are not guarantees of future performance, and actual results, developments and business decisions may differ from those envisaged by these forward-looking statements, possibly materially. iBasis disclaims any duty to update any forward-looking statements, even if new information becomes available or other events occur in the future.

2

PART I

Item 1.    Business

Company Overview

We are an international telecommunications carrier that utilizes the Internet to provide economical international telecommunications services. Our continuing operations consist of our Voice-Over-Internet-Protocol ("VoIP") business. We offer wholesale services through our worldwide network to carriers, telephony resellers and others around the world by operating through various service agreements with local service providers in the United States, Europe, Asia, the Middle East, Latin America, Africa and Australia.

During the third quarter of 2003, we introduced our retail prepaid calling card services and have marketed such services primarily to ethnic communities within major domestic markets through distributors. Our entry into the retail prepaid calling card business is based on our strategy to leverage our existing international VoIP network with additional enhanced services that have the potential to deliver higher margins than our wholesale international telecommunications services. In addition, the retail prepaid calling card business typically has a faster cash collection cycle than wholesale international telecommunications services. While revenues for these services were not material in 2003, we expect that our prepaid calling card services will, in the future, become a significant portion of our revenues.

We have a history of operating losses and, as of December 31, 2003, our accumulated deficit was $412.2 million and our stockholders' deficit was $42.1 million and we used $3.2 million in cash from operations in 2003. These results are primarily attributable to the expenditures necessary to build our network and develop and expand our market. We have $67.9 million of debt obligations due within the next two years, including $25.2 million of 11¹/2% Senior Secured Notes due in January 2005 and $38.2 million of 5³/4% Convertible Subordinated Debentures due in March 2005. (See Note 6 to our consolidated financial statements.) We believe that our forecasted financial performance in 2004 will generate sufficient revenues, earnings and cash flows to enable us to refinance this debt based on our understanding of current market conditions and comparable debt issues in our industry sector. Moreover, we are currently pursuing various alternatives including equity offerings, exchanging some portion, or all, of the debt with equity, and restructuring the debt with repayment terms that extend the maturity of our debt and are more favorable to us. However, in the event we fail to execute on our current plan, we experience events described in "Risk Factors," or that circumstances currently unknown or unforeseen by us arise, we may not succeed in re-capitalizing the Company, or be able to obtain additional funding to allow us to meet our debt obligations.

We were incorporated as a Delaware corporation in 1996. Our principal executive offices are located at 20 Second Avenue, in Burlington, Massachusetts and our telephone number is (781) 505-7500.

Industry Overview

Market Overview.    The international voice and fax traffic market is estimated to be worth more than US $50 billion. We believe that this market will continue to grow as countries around the world continue to deregulate their telecommunication markets, prices fall and underlying trends in migration and economic integration drive fundamental demand.

Global deregulation combined with rapid technological advances has enabled the emergence of many new communications service providers in dozens of local markets. In their efforts to remain competitive, national carriers are focusing their capital spending on "last-mile" services such as fixed-line, wireless, and cable that account for the most of their revenues. Consequently, communications service providers are looking for ways to expand their ability to serve all of their customers' telecoms needs, while simultaneously reducing the cost of providing international services. Increasingly, the world's carriers are seeking to outsource international voice traffic to efficient Voice

3

over Internet Protocol or VoIP networks, such as The iBasis Network™, whose inherently lower infrastructure and transport costs improve a carrier's competitiveness and bottom line, without compromising service quality.

Emergence of Internet Telephony.    Although it has been possible to transmit VoIP since 1995, only recently has the technology improved such that phone-to-phone calls can be transmitted over data networks with quality nearly indistinguishable from that of traditional voice networks. International VoIP traffic has grown rapidly; according to industry analyst, TeleGeography, traffic grew from 5.9 billion minutes in 2000, to 10.1 billion in 2001, to 18.1 billion in 2002, and is forecast to reach 24 billion in 2003.

Unlike fixed-line telecommunication networks and managed IP networks, the Internet has many potential points of congestion where information, in the form of data packets, can be delayed or dropped. For non-real time communications, such as email for example, a slight delay in the receipt of a message is not significant. However, for real-time communications, such as telephone calls, the result of a delay in transmitting the call, or losing the call altogether, is significant. To minimize the risk of delays, or losing calls, over the Internet, we utilize complex and proprietary performance monitoring and call routing technology to ensure consistently high call completion and voice quality. We have developed patent-pending quality management technology that enables us to deliver call completion rates and average call durations (the standard metrics for measuring quality in telecommunications) that we believe are consistently equal to or better than those achieved by traditional fixed-line carriers.

Internet telephony's principal benefits are:

•

Cost Advantage from Internet Transport. Traditional voice networks use circuit-switching technology, which establishes dedicated channels between an originating and terminating point for the duration of a call. Physical facilities (typically fiber and associated equipment) are dedicated to voice traffic between switching nodes, regardless of changes in demand. In contrast, Internet telephony is based on packet-switching technology. This technology completes a call by digitizing and dividing a speaker's voice into small packets that travel to their destination along lines carrying packets of other Internet traffic, in much the same way as email travels. Using a network of service facilities connected to the public Internet for transport is less costly than building a dedicated network as our calls share the Internet with other traffic.



•

Cost Advantage from IP Technology. Internet telephony gateway equipment that is used to convert and route phone calls over the Internet is less expensive and requires less physical space in telecom facilities than traditional telecommunications equipment.



•

Cost Advantage from Bypass of International Settlement Rates. Traditional international long distance calls are completed through international toll switches that provide access to the terminating network. These networks are often owned by government bodies or telecommunications carriers who charge settlement rates (or tariffs) well in excess of costs. Although these fees are being reduced in many countries as industry deregulation continues, these charges remain significant. Calls routed over the Internet bypass these toll switches, avoiding a significant portion of these fees, which further lowers the cost of completing such calls.



•

Positioning for New Services. In contrast to the closed, proprietary structure inherent in a traditional circuit-switched voice network, Internet telephony embraces an open architecture and open standards, which facilitates innovation at lower cost. Traditional voice networks have been designed specifically to provide one basic service, making it difficult and costly to introduce new services over those networks and their proprietary platforms. As data networks convert all services into data packets, new services are delivered from industry standard servers, integrating the Internet with the revolution in commodity computing.

4

Outsourcing Internet Telephony services.    Given the advantages, many carriers have begun to carry some portion of their voice traffic over IP networks. Despite the move by some large carriers to develop their own international VoIP infrastructures, carriers have been more interested in outsourcing international traffic to providers such as iBasis. The reasons for the preference to outsource international traffic include:

•

the relatively low percentage of revenue that international service represents for many large carriers;



•

the disproportionate cost and complexity of deploying and supporting international service infrastructure as compared with domestic investment opportunities;



•

a hesitation to build new networks and cannibalize traffic from their traditional voice networks;



•

concerns over sufficient in-house VoIP expertise to ensure that voice quality and network reliability are comparable to that of the public-switched telephone network, especially when routing traffic over the Internet versus private networks; and



•

generally reduced capital budgets for network investment of any kind.

Retail Prepaid Calling Card Services

Leveraging on our ability to provide wholesale Internet telephony and hosted billing services, we launched our retail prepaid calling card business in the U.S. in the third quarter of 2003. According to industry analyst Atlantic-ACM, the prepaid retail calling card market is forecasted to grow from approximately $3.5 billion in 2002 to more than $6 billion in 2003. We sell our retail prepaid calling card through established distributors to retail outlets in major metropolitan markets across the U.S. We have established a dedicated operation to sell and service our prepaid retail calling card services, which is led by an experienced industry executive. Typically, retail prepaid calling cards deliver gross margins that are substantially higher than in the wholesale Internet telephony business.

iBasis Services

iBasis wholesale international Internet telephony enables carriers and other communications service providers to outsource international voice and fax traffic, substantially lowering their transport and service support costs, without compromising quality. We provide our carrier customers access to The iBasis Network, our international Internet telephony network, through "Internet Central Offices" or "ICOs" and "Internet Branch Offices" or "IBOs" as described below under the section captioned "The iBasis Network." ICOs are strategically located in major telecommunications hubs in the U.S., Asia, and Europe. Our services provide the following key benefits to our customers:

High Quality Call Completion.    Our network, monitoring and management technologies enable us to complete international voice and fax calls with quality comparable to that of traditional circuit-switched voice networks. This high quality is reflected in the fact that carriers choose to provide our Internet telephony services to their retail customers undifferentiated from their traditional services. We achieve high quality over the Internet through a variety of controls and technologies. At our 24x7, expert-staffed global Network Operations Centers (NOCs) in Burlington, Massachusetts, USA and Hong Kong, we are able to monitor our carrier customers' voice traffic and add/remove routing choices according to real time performance. Using our patent-pending Assured Quality Routing® technology, we dynamically route customers' traffic over multiple Internet backbones, completing calls on our partners' phone networks in destination countries.

Cost Effective Services.    Our call transport costs are lower because packet switching is more efficient than traditional circuit-switching. Because we use the Internet, rather than a private IP network, to deliver international voice traffic, we have greater infrastructure flexibility and lower costs than service providers that employ dedicated point-to-point connections. VoIP equipment is less costly and has

5

lower facilities costs (due to its smaller physical footprint) than equivalent capacity circuit-switched equipment. We offer an open, scalable architecture that enables carriers and communications service providers to connect within a short period of time and without investment or special expertise. An additional advantage derives from our ability to bypass many of the international tariffs or settlement rates associated with some international traffic carried over circuit-switched voice networks, which produces additional cost savings. Our enhanced services—IP Call Card, ConnectPoint® Global Access—all build upon the underlying network to create cost effective value-added solutions for our customers.

Simple Value Propositions that Reduce Complexity and Solve Current Customer Problems.    In the current global telecom environment, carriers are spending money only on what is necessary for their immediate business plans. The iBasis service portfolio does not rely on expectations that customers will choose to begin and will be successful with new services. While some customers buy our routes individually, some customers give to iBasis all of their international traffic which they pick-up as a "byproduct" of their locally-focused operations. We help them do the "small but essential' job of terminating their international traffic—conveniently and effectively. Likewise, our customers find themselves with rapidly growing demand for prepay and audio-conferencing services where outsourcing to iBasis enables them to eliminate an old-technology audio-conferencing platform or to quickly create an option for customers to prepay while the market window still exists, all without expenditure of capital. ConnectPoint Global Access provides customers local access numbers in countries around the world, delivering traffic across our network to a central point(s). The service enables our customers' customers to easily access resources (such as an out-of-country call center) that would otherwise require an international long distance direct dial or an international toll free call. ConnectPoint saves our customers the time and cost of developing their own global arrangements for local access and transport to the central point(s).

The iBasis Network

The iBasis Network is our growing international network, over which we deliver large volumes of high quality international voice, fax and enhanced services at significant cost savings to our customers. iBasis transported approximately 3.5 billion minutes of traffic over our network in 2003, a traffic volume that would position iBasis among the ten largest carriers of international traffic in the world, based on global traffic statistics contained in the industry analyst publication TeleGeography 2003. As of December 31, 2003, we had Points of Presence—generally referred to as POPs—in 95 countries. POPs designate points where the iBasis network connects to local telephone networks for call origination or termination.

We have completed the deployment of our next generation switchless architecture, leveraging our existing Cisco AS5000 gateways and SC 2200 SS7 technology, as well as new patent-pending iBasis technology for quality management and advanced routing. Our Assured Quality Routing® and PathEngine™ technology enable ongoing monitoring of network quality and automatic selection of best quality routes based on near real-time performance data. The new architecture provides us with significant savings in operational costs and capital expense by eliminating the need for costly telecommunications switches and other equipment and connectivity in central offices. It also has enabled us to simplify provisioning, real-time route monitoring, and network management by decreasing the number of network components involved in carrying a call. The result for our customers is higher voice quality, call completion and call duration.

The iBasis Network consists of four principal elements:

•

Internet Central Offices (ICOs) and Internet Branch Offices (IBOs) that convert circuit-switched voice traffic into data for transmission and reception over the Internet or vice versa;



•

the transmission medium, which is principally the Internet;

6

•

Assured Quality Routing® (AQR), our proprietary traffic monitoring and routing management software; and



•

our network operations centers (NOCs), from which we oversee and coordinate the operation of the ICOs and IBOs.

Internet Central Offices and Internet Branch Offices.    Our customers can interconnect with our network, at their cost, by connecting dedicated voice circuits from their facilities to one of our ICOs, which are strategically located in Amsterdam, Frankfurt, Hong Kong, London, Los Angeles, New York, Paris, and Tokyo. Alternatively, our customers may elect to install an iBasis IBO at their facilities. ICOs and IBOs receive calls directly from a local carrier's switched network. VoIP gateways in each ICO or IBO digitize, compress and packetize voice and fax calls and then transmit them over the Internet. At the destination, another ICO or IBO reverses the process and the call is switched back from the Internet to a local carrier's circuit-switched network in the destination country. Some of our customers and termination partners have their own VoIP gateway equipment—we generally interconnect with these customers and partners via the Internet. As this trend progresses, our already asset-effective business model gains further strength, as iBasis no longer bears all the cost of converting calls between traditional voice network and the Internet and dedicated physical circuit-switched interconnects are eliminated altogether.

The Internet.    We use the Internet to transmit the substantial majority of our voice and fax traffic because of its global coverage, low cost and flexible connectivity. As a result, we have avoided the expense and delay of deploying and maintaining a private, dedicated network of fiber and cable connections. In addition, because we do not have fixed, point-to-point connections, we can adapt to changes in international traffic flows rapidly and at minimal cost. We effectively address the challenges of using the Internet for high quality, real-time voice communications by:

•

selecting only high quality, service-oriented Internet service providers as our vendors;



•

purchasing multiple, high-speed connections into the Internet backbone; and



•

continuously monitoring the quality of the connections between our PoPs and the Internet.

In certain infrequent circumstances we use private leased lines or traditional circuit-based voice networks to terminate traffic to destinations where there is insufficient Internet bandwidth available to meet our quality standards.

Assured Quality Routing.    We have deployed a proprietary patent-pending system of tools—collectively known as, Assured Quality Routing to maintain high quality service over the Internet. AQR optimizes the quality of calls placed over The iBasis Network by integrating quality parameters into routing decisions. These parameters include measures of quality that are of direct importance to carriers including call duration, call completion and post-dial delay as well as underlying determinants of successful data transmission, namely packet loss, jitter and latency. AQR automatically reroutes traffic in anticipation of quality dropping below specific thresholds, sending subsequent calls through another Internet path, to an alternative terminating IP partner or to a circuit-switched backup vendor if necessary.

Global Network Operations Centers.    We manage our network and implement AQR through our network operations centers (NOCs). iBasis NOCs use leading network management tools from Hewlett-Packard and a number of other vendors, which are integrated with our AQR systems to enable us to monitor, test and diagnose all components of The iBasis Network. NOCs in Burlington, Massachusetts and Hong Kong are staffed by network and traffic engineers to provide expert coverage 7 days a week, 24 hours a day, 365 days of the year, and are equipped with:

•

tools that support the monitoring and analysis of various components of The iBasis Network to identify and address potential network problems before they affect our customers;

7

•

system redundancy, including power back-up; and



•

a help desk that allows us to respond quickly to our customer's needs and concerns.

Research and Development

Our research and development activities are primarily focused on developing, improving and expanding The iBasis Network. These activities include the development of specific tools for our networks, such as our patent-pending Assured Quality Routing and PathEngine technologies. In addition, our engineering personnel contribute to the support and operation of our global network operations centers, which oversee and coordinate the operation of our ICO's and IBO's. Research and development expenses were $13.4 million, $17.8 million and $23.9 million for 2003, 2002 and 2001, respectively.

Markets and Customers

Our customer base can be segregated by size into Tier 1, Tier 2 and Tier 3 carriers. Generally, Tier 1 carriers are large domestic and international carriers, such as AT&T, WorldCom, Sprint, Cable & Wireless, and certain government-affiliated or privatized dominant carriers, such as the Japanese telecommunications carrier KDD. Tier 1 carriers generally have annual revenues in excess of $2 billion. Tier 2 carriers have revenues generally in the range of $750 million to $2 billion, but have fewer direct operating agreements with other carriers and fewer international facilities. Tier 3 carriers are typically switch-based resellers with revenues of less than $750 million.

The majority of traffic carried over The iBasis Network is from Tier 1 carriers. In 2003, Tier 1 carriers, the world's largest and most demanding carriers, accounted for 61 percent of our traffic. The ability to provide quality call completion consistently acceptable to Tier 1 carriers is of vital importance because these carriers control the vast majority of the world's retail traffic. Tier 1 carriers will continue to be a main area of focus for our sales force.

The proportion of our traffic originating from outside of the United States was 43% of total revenue and 41% of total traffic in 2003. Non-U.S. origination generally produces higher margins than US-originated traffic. As of December 31, 2003, iBasis provided services to more than 237 carriers worldwide and one carrier accounted for more than 10% of revenue in 2003. Only one carrier accounted for more than 10 percent of our revenue for 2002. For further discussion of our revenues related to significant customers and customers in other countries and other geographic information, refer to Notes 2 and 9 to our consolidated financial statements.

In countries where we terminate our traffic, we have established relationships with local service providers that have strong local market expertise and relationships. Some of our overseas partners are very large, well-established national carriers. Others are emerging carriers or Internet Service Providers (ISPs) who are able to provide the interconnection necessary to terminate minutes for us in their country.

Increasingly, traffic flows are becoming reciprocal—formerly distinct customers and suppliers are becoming "trading-partners"—as deregulation and competition erode the distinction between the business models of our customers and suppliers. We expect continued growth in both size and profitability as this trend progresses and we further consolidate our position as a leading carrier that interconnects the world's local service providers.

We have put particular emphasis on our wholesale international long distance telephone service as our margins for calls originating from outside the U.S. are generally higher than for calls originated from the U.S. Deregulation and increased competition in the telecommunications industry has caused prices for long distance telephone service to steadily decline, particularly in the U.S. As a wholesale provider of long distance telephone services, our margins in this business reflect the effect of these lower prices. We attempt to offset the effect of these lower prices by negotiating lower costs from our call termination partners and by increasing the cost efficiency and utilization of our network. Our retail

8

prepaid calling card services offer the potential to realize higher margins than our wholesale long distance telephone services. With our prepaid calling cards, we are able to charge per-minute rates that can exceed our wholesale long distance rates, as well as fees associated with the use of these prepaid calling cards.

Sales and Marketing

Sales Strategy.    Our sales efforts for Internet telephony target leading telecommunications carriers globally. Our sales force is composed of experienced personnel with well-established relationships in the telecommunications industry, based in key markets worldwide and typically responsible for business development in a small number of countries regionally. Our sales process often involves a test by our potential customers of our services in which they route traffic over our network to a particular country. Our experience to date has been that once a carrier has begun to use our network for a single country and finds our quality to be acceptable, the sales process for increasing the volume of traffic they send to us and growing the number of destinations for which they use our network becomes incrementally easier.

We also seek to establish and grow relationships with service providers that can terminate the local leg of international calls. We believe that our ability to deliver a high volume of minutes makes us an attractive potential partner for local service providers.

As deregulation and competition push all local service providers to both originate and terminate as much traffic as possible on their local networks, iBasis will increasingly enjoy "reciprocal" relationships with the providers with which we do business, further improving sales productivity.

We have offices providing sales coverage in Europe, Africa, the Middle East, Latin America, the Caribbean, the Asia-Pacific region, and North America.

Marketing Strategy.    We seek to attract termination partners as well as customers and consequently address our marketing efforts to both. Most retail origination is controlled by the largest (Tier 1) retail carriers. We believe that we have largely achieved our primary marketing objectives of awareness and acceptance among much of this customer segment, as evidenced by our penetration of these carriers, particularly in the United States, Western Europe and China. We will continue to reinforce our brand presence with this segment in 2004 to help increase our share of their international traffic. Also, we will concentrate on state-owned carriers, known as PTTs—in Asia and in developing economies generally—whom we view as natural customers. While we increasingly expect our customers to also be our termination partners, local circumstances in many countries still are such that we look to partner with ISPs, new Competitive Local Exchange Carriers (CLECs) and specialist termination providers. Unlike marketing to the well-known Tier 1 carriers, we actively identify and attract smaller termination partners in many countries, many of which are start-ups formed specifically to terminate international traffic. Our marketing plan includes public relations activity, outreach with industry analysts and the trade press, participation in industry trade shows and conferences, targeted mailings and a comprehensive Website. We expect our Web-based marketing efforts to continue to increase in prominence in attracting and qualifying leads.

Our sales and marketing strategy for our retail prepaid calling card business is to create relationships with established distributors in major urban markets in the U.S. Although we have initially concentrated our efforts on the U.S. market, we may introduce our retail prepaid calling card business in international markets in the future.

Strategic Technology Relationships

Strategic technology relationships are important because they give us early access to new technologies, a voice in vendors' development direction and because strategic partners engage with us in support of our sales and marketing programs.

9

Cisco Systems

Since its founding in 1996, we have maintained a strong, strategic technology and business relationship with Cisco Systems. The iBasis Network is the largest international Cisco Powered Network™ for Internet telephony. This designation means that The iBasis Network is built end-to-end with Cisco products and technologies, and meets a high standard of reliability and performance. As a Cisco Powered Network, we have enhanced access to Cisco technical resources and are able to more quickly deliver new capabilities and service features. We have regularly engaged in numerous early field trials of Cisco VoIP technologies, during which we gain experience with new features before they are available to the marketplace. We have also conducted joint sales and marketing activities with Cisco. Our management team regularly meets with Cisco executives at Cisco's Executive Briefing Center. We are a founding member of Cisco's Service Carrier Community, a program that helps connect us to potential business development opportunities with other VoIP carriers.

Competition

We compete in two markets: wholesale international long distance telephone services and retail prepaid calling card services. As described more completely in the section captioned "Risk Factors," the market for international long distance voice and fax call completion services is highly competitive. In the international long distance telephone business, we compete with other wholesale telecommunications carriers worldwide. Many of these carriers have more resources, longer operating histories and more established positions in the telecommunications marketplace, and, in some cases, have begun to develop Internet telephony capabilities. We also compete with smaller companies, including those that may be specialists in just one or two routes. We also compete against our customers' ability to carry traffic themselves, whereby either retail carriers develop their own international networks or interconnect with one another and exchange international traffic by "meeting" in a major telecoms hub, such as London. At present, we do not compete with cable operators, or local exchange carriers, such as the U.S. "Baby Bells". Also, at present, we do not compete with emerging retail VoIP carriers as most have not developed international networks. We compete principally on quality of service and price. In the overall international long distance market, which was approximately 180 billion minutes of phone calls in 2003, we were among the ten largest carriers with about 2% market share. In our specific subset of that market—international VoIP traffic, which is estimated at about 24 billion minutes in 2003, iBasis has approximately 15% market share.

In the retail prepaid calling card business, we compete with major telecommunications carriers, and many smaller telecommunications providers. As we have just recently introduced this service, many of our competitors have a longer operating history and a more established market presence in the retail prepaid calling card business than us. Also, many of these competitors have greater resources than us. The U.S. market for retail prepaid calling card services is currently estimated at over $4 billion per year.

Although the market for wholesale international traffic and retail prepaid calling card services is highly competitive and will almost certainly remain so, we believe that our brand-strength, customer base, established global distribution and patented ability to manage traffic across the (low-cost) Internet, while maintaining required quality, collectively represent a competitive advantage that will allow us to continue expanding both volumes and margins.

Government Regulation

As more fully described in the "Risk Factors" our business is subject to U.S. and foreign laws, which may include those relating to telecommunications.

We are not licensed to offer traditional telecommunications services in any U.S. state and we have not filed tariffs for any service at the Federal Communications Commission or at any state regulatory commission. Nonetheless, aspects of our operations may currently be, or become, subject to state or

10

federal regulations governing licensing, universal service funding, advertising, disclosure of confidential communications or other information, excise taxes, transactions restricted by U.S. embargo and other reporting or compliance requirements.

While the FCC to date has maintained an informal policy that information service providers, including Internet telephony providers, are not telecommunications carriers for regulatory purposes, various entities have challenged this idea, both before the FCC and at various state government agencies. As a result, the FCC has held hearings and announced a Notice of Proposed Rulemaking. An adverse ruling could subject us to licensing requirements and additional fees and subsidies increasing the costs of providing our services.

The regulatory treatment of Internet Telephony and other iBasis services varies widely among other countries and is subject to constant change. Until recently, most countries did not have regulations addressing Internet Telephony or other VoIP services such as calling cards, in some cases classifying these services as unregulated services. As the Internet telephony market has grown and matured, increasing numbers of regulators have begun to reconsider whether to regulate Internet telephony and other VoIP services. Some countries currently impose little or no regulation on Internet telephony or VoIP services. Conversely, other countries that prohibit or limit competition for traditional voice telephony services generally do not permit Internet telephony or VoIP services or strictly limit the terms under which such services may be provided. Still other countries regulate Internet telephony and VoIP services like traditional voice telephony services, requiring Internet telephony companies to obtain licenses, incorporate local subsidiaries, make universal service contributions and pay other taxes.

We have advocated and supported deregulation for free and open market competition in a variety of countries.

Intellectual Property

We regard our copyrights, service marks, trademarks, trade dress, trade secrets, patents, patent applications and similar intellectual property as critical to our success and we rely on trademark and copyright law, trade secret protection and confidentiality and/or license agreements with out employees, customers, partners, and others to protect our proprietary rights. Our policy is to patent the technology, inventions and improvements that we consider important to the development of our business. As of January 28, 2004, we had five pending United States patent applications for The iBasis Network and other inventions related to our business. We pursue the registration of our trademarks and service marks in the United States and overseas. As of January 28, 2004, we have been granted trademark registration for the marks iBasis, Assured Quality Routing, and ConnectPoint in the United States, and iBasis in the European community, and have pending registration applications for other service marks. We also rely on trade secrets, technical know-how and continuing innovation to develop and maintain our competitive position. We have granted licenses in the ordinary course of business for occasional use of the company's name, logo, trademarks and/or servicemarks to certain marketing partners pursuant to joint marketing and/or other agreements. Likewise, we have been granted certain licenses for use in the ordinary course of business.

Employees

As of December 31, 2003, we employed 210 people. Our employees are not represented by a labor union and we consider our relations with our employees to be good.

11

Geographic Areas

For financial information about geographic areas, including information about revenues and long-lived assets, see Note 9, "Segment and Geographic Information" to our Consolidated Financial Statements.

Item 2.    Properties

We lease the following facilities:

In addition to the facilities listed above, we have obtained collocation space in special facilities around the world that are dedicated to housing equipment of multiple competitive telephony carriers. We lease these smaller spaces to house Internet routing and related equipment. We lease collocation space in Amsterdam, Frankfurt, Hong Kong, London, Paris, and Tokyo. We also rent smaller office space in London and Beijing. We believe that our existing facilities are adequate for our current needs and that suitable additional or alternative space will be available in the future on commercially reasonable terms.

12

Item 3.    Legal Proceedings

In addition to litigation that we have initiated or responded to in the ordinary course of business, we are currently party to the following potentially material legal proceedings:

Beginning August 1, 2001, we were served with several class action complaints that were filed in the United States District Court for the Southern District of New York against us and several of our officers, directors, and former officers and directors, as well as against the investment banking firms that underwrote our November 11, 1999 initial public offering of common stock and our March 9, 2000 secondary offering of common stock. The complaints were filed on behalf of persons who purchased our common stock during different time periods, all beginning on or after November 10, 1999 and ending on or before December 6, 2000.

The complaints are similar to each other and to hundreds of other complaints filed against other issuers and their underwriters, and allege violations of the Securities Act of 1933 and the Securities Exchange Act of 1934 primarily based on the assertion that there was undisclosed compensation received by our underwriters in connection with our public offerings. The plaintiffs are seeking an as-yet undetermined amount of monetary damages in relation to these claims. On September 4, 2001, the cases against iBasis were consolidated. On October 9, 2002, the individual defendants were dismissed from the litigation by stipulation and without prejudice. We believe that iBasis and the individual defendants have meritorious defenses to the claims made in the complaints and we intend to contest the lawsuits vigorously. Nevertheless, in deciding to pursue settlement, we considered, among other factors, the substantial costs and the diversion of our management's attention and resources that would be required by litigation. We cannot assure you that the settlement will be finalized, or that we will be fully covered by collateral or related claims from underwriters, and that we would be successful in resulting litigation. In addition, even though we have insurance and contractual protections that could cover some or all of the potential damages in these cases, or amounts that we might have to pay in settlement of these cases, an adverse resolution of one or more of these lawsuits could have a material adverse affect on our financial position and results of operations in the period in which the lawsuits are resolved. We are not presently able to estimate potential losses, if any, related to the lawsuits.

We are also party to collections suits for collection, related commercial disputes and claims from estates of bankrupt companies alleging that we received preferential payments from such companies prior to their bankruptcy filings. We intend to employ all available defenses in contesting claims against us. The results or failure of any suit may have a material adverse affect on our business.

Item 4.    Submission of Matters to a Vote of Security Holders

At a Special Meeting of Shareholders held on February 18, 2004, shareholders voted to give the iBasis board of directors authority to effect a reverse split of the Company's common stock. The results of the vote were as follows:

The affirmative vote by shareholders permits the iBasis board of directors to choose to effect a reverse stock split of the Company's common stock at a ratio of between one-and-a-half for one (1.5:1) and five for one (5:1). Alternatively, the board may choose not to affect such a split.

13

PART II

Item 5.    Market for the Registrant's Common Equity and Related Stockholder Matters

Market Information

Our common stock began trading publicly on the Nasdaq National Market on November 10, 1999 and was traded under the symbol "IBAS." On November 13, 2002, we received a determination from Nasdaq that shares of our common stock would no longer trade on the Nasdaq National Market because we failed to meet certain minimum listing requirements. Our common stock began trading on the Nasdaq operated Over-the-Counter Bulletin Board on November 14, 2002 under the same symbol "IBAS." The following table shows the range of the high and low per share prices of our common stock, as reported by the Nasdaq National Market and the Over-the-Counter Bulletin Board for the period indicated. Over-the-Counter market quotations reflect interdealer prices, without retail mark-up, mark-down or commission and may not necessarily reflect actual transactions.

Holders

As of February 13, 2004, there were 235 stockholders of record. This does not reflect persons or entities who hold their stock in nominee or "street" name through various brokerage firms.

Dividends

We have never declared or paid cash dividends on our common stock. Our existing financing arrangements place restrictions on our ability to pay cash dividends. We intend to retain all future earnings to finance future growth, and, therefore, we do not anticipate paying any cash dividends in the foreseeable future.

14

Item 6.    Selected Financial Data

The following historical selected financial information of iBasis has been derived from, and should be read in conjunction with, the consolidated financial statements and related notes included elsewhere in this document.

During July 2002, we sold our Speech Solutions Business. Accordingly, the Consolidated Statements of Operations have been reclassified to present the results of the Speech Solutions Business separately from continuing operations as discontinued operations.

15

(1)

Computed on the basis described in Note 2 of the notes to our consolidated financial statements appearing elsewhere in this annual report.

(2)

Adjusted to give effect to the conversion of all shares of preferred stock, Class A and Class B common stock from the date of original issuance. Does not include the shares of common stock issued upon the conversion of notes issued by the Company in March 2000.

16

Item 7.    Management's Discussion and Analysis of Financial Condition and Results of Operations

Forward-Looking Statements

This annual report contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. This Act provides a "safe harbor" for forward-looking statements to encourage companies to provide prospective information about themselves so long as they identify these statements as forward looking and provide meaningful cautionary statements identifying important factors that could cause actual results to differ from the projected results. All statements other than statements of historical fact made in this annual report are forward looking. In particular, the statements herein regarding industry prospects and future results of operations or financial position are forward-looking statements. Forward-looking statements reflect management's current expectations and are inherently uncertain iBasis's actual results may differ significantly from management's expectations. We disclaim any duty to update any forward-looking statements, all of which should be read in conjunction with the "Risk Factors" section of this annual report.

Overview

We are an international telecommunications carrier that utilizes the Internet to provide economical international telecommunications services to carriers and telephony resellers around the world. Our continuing operations consists of our VoIP business including incorporated subsidiaries around the world designed to enhance our global operations. We currently operate through various service agreements with local service providers in the United States, Europe, Asia, the Middle East, Latin America, Africa and Australia.

During 2003, many major telecommunications carriers announced plans to deploy VoIP technology in their networks, to migrate their traffic to VoIP, and to introduce VoIP-based services to their retail customers. In addition, new providers of retail telephony services based on VoIP emerged during 2003. We believe this trend may have a positive impact on our busi