iBasis Names Consumer and Mobile Telecom Veteran to Head Retail Business

Business Wire, Jan 9, 2006

BURLINGTON, Mass. -- iBasis, Inc. (OTCBB: IBAS), the leader in international long distance, VoIP, and prepaid calling cards, today announced that it has named Timothy Enright, senior vice president, Retail. He will be responsible for driving growth of the company's Retail business, which includes prepaid calling cards sold through distributors and the Pingo prepaid service which is sold online at www.pingo.com. Enright brings more than 20 years of sales and marketing experience in consumer telecommunications.

"We have made tremendous progress growing our Retail business over a short period, achieving an annual run-rate of $70 million, based on results of the third quarter 2005," said Ofer Gneezy, president and CEO of iBasis. "We are building on that achievement by adding proven executive talent. Tim's success in developing sales and distribution channels for consumer services in the mobile industry will be a tremendous asset in moving our Retail business to the next level."

Prior to joining iBasis, Enright developed Nextel's wireless phone business as area vice president for New England, achieving annual revenue of $750 million and a three-year growth rate in subscribers of 75%. He was named Nextel's #1 area vice president for 2002 and 2003. Enright has also played leadership roles in the wireless businesses of Sprint PCS and CellularOne in New York and New England. He received a Masters Degree in Business Administration from Northeastern University, and a Bachelor of Arts Degree from the University of Massachusetts.

About iBasis

Founded in 1996, iBasis (OTCBB: IBAS) is a leading wholesale carrier of international long distance telephone calls and a provider of retail prepaid calling services, including the Pingo(TM) web-based offering (www.pingo.com) and disposable calling cards, which are sold through major distributors and available at retail stores throughout the U.S. iBasis customers include many of the largest telecommunications carriers in the world, including AT&T, Cable & Wireless, China Mobile, China Unicom, MCI, Sprint, Skype, and Telefonica. iBasis carried approximately 5 billion minutes of international voice over IP (VoIP) traffic in 2004, and is one of the ten largest carriers of international voice traffic in the world(1). For four consecutive years service providers named iBasis the best international wholesale carrier in ATLANTIC-ACM's annual International Wholesale Carrier Report Card(2). iBasis was also ranked among the fastest-growing technology companies in New England in the 2002, 2003, and 2004 Technology Fast 50 programs sponsored by Deloitte & Touche. The Company can be reached at its worldwide headquarters in Burlington, Massachusetts, USA at 781-505-7500 or on the Internet at www.ibasis.com.

iBasis and Pingo are registered marks. DirectVoIP, PremiumCertified, and The iBasis Network are trademarks of iBasis, Inc. All other trademarks are the property of their respective owners.

Except for historical information, all of the expectations, projections and assumptions contained in the foregoing press release, including those relating to the company's current expectations regarding revenue growth, sources of revenue, margin improvement, profitability, future capital expenditures, and cash flows constitute forward-looking statements under the Private Securities Litigation Reform Act of 1995 and involve risks and uncertainties. Important factors that could cause actual results to differ materially from such forward-looking statements include, but are not limited to, (i) the extent of adoption of the company's services and the timing and amount of revenue and margin generated by these services; (ii) fluctuations in the market for and pricing of these services; and (iii) the other considerations described as "Risk Factors" in the Company's most recent Forms 10-K and 10-Q, and the company's other SEC filings. We have no current intention to update any forward-looking statements.

(1) Telegeography 2005 data compared with iBasis 2004 traffic volume.

(2) ATLANTIC-ACM International Wholesale Carrier Report Card - 2002, 2003, 2004, & 2005.