ARBX Arbinet Corp. (MM)

Arbinet-thexchange, Inc. (Nasdaq: ARBX), a leading provider of innovative voice and IP solutions for buying and selling telecommunications capacity, today announces it has hired Dan Powdermaker as the company�s Senior Vice President of Sales and Marketing. In this role, Mr. Powdermaker will be charged with managing the global sales, marketing and product organizations that span Europe, the Middle East and Africa, the Americas and Asia and include both the international Voice and IP platform solutions. Arbinet�s appointment of Dan Powdermaker marks the first addition to the executive management team by Shawn O�Donnell, who has been CEO of the company since September 2008. �With more than 17 years as a manager and executive in the Telecom industry, Mr. Powdermaker�s skills will further enhance Arbinet�s ability to position the company�s products and services to be more in synch with the telecom industry�s market demands and requirements,� states Mr. O�Donnell. Mr. Powdermaker brings extensive industry experience to Arbinet. Most notably, he was an original member of the iBasis, Inc. management team, where he oversaw a global sales, and business development organization that spanned twenty countries and grew revenues to more than $600 Million over a period of ten years. Prior to iBasis, Mr. Powdermaker worked in sales management and marketing positions at ATT and MFS Communications. �Arbinet has always been an innovative company solving problems inherent in the global telecommunications marketplace,� stated Dan Powdermaker, Senior Vice President of Sales and Marketing for Arbinet. �I am honored to join the company to help shape, mold and execute its future vision. Arbinet�s technology platform makes the company uniquely positioned to provide solutions for both global voice and IP communications, empowering telecommunication carriers with more efficient, high quality and cost-effective connectivity solutions.� For more information on Arbinet, visit www.arbinet.com. About Arbinet Arbinet is a leading provider of innovative voice and IP solutions empowering communications companies to create the most efficient and valuable global interconnections. Arbinet offers the greatest flexibility in global scale, platform intelligence, and managed solutions to achieve commercial efficiency and interconnection simplicity. Arbinet manages business relationships, back office operations and call routing for Members who route through Arbinet approximately 2% of the world�s international voice traffic to over 1,300 destinations worldwide. These Members include fixed line, mobile, wholesale and VoIP carriers as well as calling card, ISPs and content providers around the world who buy and sell voice and IP telecommunications capacity and content. For more information about Arbinet�s solutions, visit www.arbinet.com Forward-Looking Statements This press release contains forward-looking statements regarding anticipated future revenues, growth, capital expenditures, management�s future expansion plans, expected product and service developments or enhancements, and future operating results. Such forward-looking statements may be identified by, among other things, the use of forward-looking terminology such as: "believes," "expects," "may," "will," "should" or "anticipates," or the negative thereof or other variations thereon or comparable terminology, or by discussions of strategy that involve risks and uncertainties. Various important risks and uncertainties may cause Arbinet�s actual results to differ materially from the results indicated by these forward-looking statements, including, without limitation: members (in particular, significant trading members) not trading on our exchange or utilizing our new and additional services (including DirectAxcessSM, PrivateExchangeSM, AssuredAxcessSM and PeeringSolutionsSM); continued volatility in the volume and mix of trading activity; our uncertain and long member enrollment cycle; the failure to manage our credit risk; failure to manage our growth; pricing pressure; investment in our management team and investments in our personnel; regulatory uncertainty; system failures, human error and security breaches that could cause Arbinet to lose members and expose it to liability; Arbinet�s ability to obtain and enforce patent protection for our methods and technologies; and disruption or uncertainty resulting from recent changes in senior management. For a further list and description of the risks and uncertainties the Company faces, please refer to Part I, Item 1A of the Company�s Annual Report on Form 10-K, filed with the Securities and Exchange Commission on March 17, 2008, and other filings that have been filed with the Securities and Exchange Commission. Arbinet assumes no obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise and such statements are current only as of the date they are made.