NII Holdings Integrates Canada Into the International Direct Connect(SM) Network

NII Holdings, Inc. (Nasdaq: NIHD) in partnership with Canadian wireless carrier TELUS Mobility, today announced the integration of Canada into its International Direct Connect(SM) network. International Direct Connect (IDC) is an extension of the Direct Connect(R) walkie-talkie service. Under this agreement, NII Holdings' customers in Argentina, Brazil, Mexico and Peru will be able to communicate with TELUS Mobility Mike(R) subscribers in Canada. NII Holdings, TELUS Mobility and Nextel Communications Inc. (Nasdaq: NXTL) subscribers in the U.S. will now be able to communicate instantly across national borders throughout the Americas.

The addition of TELUS Mobility subscribers to the International Direct Connect network extension will provide added value options for NII Holdings' customers such as automatic integration with Canada and access to wireless data services when traveling in Canada. Cellular roaming will be available in June.

"Integrating TELUS mobility clients into our International Direct Connect network further expands our footprint across the Americas, and differentiates NII in the market by offering the convenience of communicating across borders at the touch of a button," said Steve Shindler, NII's chairman and CEO. "The completion of the International Direct Connect network, the fruit of a shared commitment and a high degree of cooperation among the partners who have joined forces to develop, test and release the service, is the natural progression of our continuous commitment to deliver the most efficient communications solution to our customers. With IDC, TELUS Mobility clients will have access to an enhanced communications tool that provides them with instant access across national borders to 1.88 million subscribers in Latin America."

"TELUS Mobility Mike subscribers have taken full advantage of the instant contact capabilities of Mike's Direct Connect(R) across Canada and, since 2004, across the border into the United States. The addition of Mexico and South America to our International Direct Connect footprint will further enhance Mike's position as the wireless network of choice for Canadian business," said Wade Oosterman, TELUS Mobility's Executive Vice President of Sales and Marketing.

"The enhancement of International Direct Connect(SM) walkie-talkie service from Mexico and South America to Canada and back, benefits Nextel customers who conduct business throughout North and South America," said Blair Kutrow, vice president, product management, Nextel. "Through our partnership with NII and TELUS Mobility, Nextel has been committed to the integration process to provide our customers with the same high quality performance from IDC as with our Nationwide Direct Connect(SM) service, connecting in under a second."

In 2004, NII Holdings and Nextel Communications launched IDC in Argentina, Brazil, Peru, Mexico and the U.S., while Nextel Communications and TELUS Mobility launched IDC between their subscribers in the United States and Canada. Now, the connection is complete between all 6 countries. The cross- border instant communications market between Canada, the U.S., and Central and South America represents a significant opportunity for NII Holdings, Nextel Communications and TELUS Mobility.

Utilizing Motorola's iDEN (integrated Digital Enhanced Network) technology, IDC is a natural extension of Nextel's walkie-talkie service, which provides cost-effective communications with unmatched speed, reach and clarity. It also provides immediate access to iDEN(R) wireless networks in North and South America, which includes millions of existing walkie-talkie users. In the United States, where Nextel is a leading provider of fully integrated wireless communications services and has built the largest guaranteed all-digital wireless network in the country, more than 16 million Nextel users have access to IDC, allowing them to instantly connect with users in Canada and South America.

About NII Holdings, Inc.

NII Holdings, Inc., a publicly held company based in Reston, Va., is a leading provider of mobile communications for business customers in Latin America. NII Holdings, Inc. has operations in Argentina, Brazil, Mexico and Peru, offering a fully integrated wireless communications tool with digital cellular service, text/numeric paging, wireless Internet access and International Direct Connect(SM), an extension of Direct Connect(SM), a radio feature that allows Nextel subscribers to communicate instantly and across national borders. NII Holdings, Inc. trades on the NASDAQ market under the symbol NIHD. Visit the Company's website at http://www.nii.com .

About TELUS Mobility

TELUS Mobility provides its more than 3.9 million clients across Canada with a full suite of wireless voice, Internet and data services through its PCS and Mike digital wireless networks. For more about TELUS Mobility products, please visit http://telusmobility.com .

TELUS (NYSE: TU; TSX: T, T.NV) is the largest telecommunications company in Western Canada, with more than $7.6 billion of annual revenue, 4.8 million network access lines and 3.9 million wireless clients. The company provides subscribers with a full range of telecommunications products and services including data, voice and wireless services across Canada, utilizing next generation Internet-based technologies. For more, please visit http://www.telus.com .

Nextel, the Nextel logo, Nextel Online, Nextel Business Networks and Nextel Direct Connect are trademarks and/or service marks of Nextel Communications, Inc.

Mike and Mike's Direct Connect are registered trademark of TELUS Corporation.

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995. A number of the matters and subject areas discussed in this press release that are not historical or current facts deal with potential future circumstances and developments. The discussion of such matters and subject areas is qualified by the inherent risks and uncertainties surrounding future expectations generally, and also may materially differ from NII Holdings' actual future experience involving any one or more of such matters and subject areas. NII Holdings has attempted to identify, in context, certain of the factors that it currently believes may cause actual future experience and results to differ from NII Holdings' current expectations regarding the relevant matter or subject area. Such risks and uncertainties include the economic conditions in our targeted markets, performance of our technologies, timely development and delivery of new technologies, competitive conditions, market acceptance of our services, access to sufficient capital to meet operating and financing needs and those that are described from time to time in NII Holdings' reports filed with the Securities and Exchange Commission. This press release speaks only as of its date, and NII Holdings disclaims any duty to update the information herein.

Contacts: Investor Relations: Tim Perrott (703) 390-5113 tim.perrott@nii.com Media Relations: Claudia E. Restrepo (786) 251-7020 claudia.restrepo@nii.com

SOURCE NII Holdings, Inc.

Investor Relations: Tim Perrott, +1-703-390-5113 or tim.perrott@nii.com or Media Relations: Claudia E. Restrepo, +1-786-251-7020 or claudia.restrepo@nii.com

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