• Relationship with Premier Online Directory Provider Switchboard Puts YELLOWPAGES.COM's Network Distribution Reach to Almost 17 Million Unique Consumers* for Local Advertisers

PASADENA, Calif. and BELLEVUE, Wash. May 26, 2005 —

YELLOWPAGES.COM, a joint venture between SBC Communications (NYSE: SBC) and BellSouth (NYSE: BLS), and Switchboard, a wholly-owned subsidiary of InfoSpace, Inc. (NASDAQ: INSP), today announced a distribution agreement to feature YELLOWPAGES.COM, SBC SMARTpages.com and BellSouth RealPages.com advertisers on the Switchboard^® online directory network (www.switchboard.com). Advertisers will receive priority distribution in the Switchboard.com search results and exposure to Switchboard's more than six million unique users across all 50 states.

"Our relationship with Switchboard brings significant value and benefit to our advertisers. With this agreement, YELLOWPAGES.COM continues to focus on its goal to connect consumers with businesses. Switchboard helps YELLOWPAGES.COM provide the highest quality audience and greatest reach," said Charles Stubbs, president and CEO of YELLOWPAGES.COM. "The YELLOWPAGES.COM network is now one of the greatest providers of Internet Yellow Pages exposure available to advertisers with just a single purchase. This is a direct benefit to advertisers on our three sites - YELLOWPAGES.COM, SMARTpages.com and RealPages.com. We believe YELLOWPAGES.COM and its network sites provide the best online advertising solutions for local advertisers. And we are doing just that - helping to make their phones ring more often and directing buyers to their doors and Websites."

InfoSpace ranks as one of the premier online directory service providers on the Internet. InfoSpace's Switchboard platform offers users local merchant listings and information from more partners than any other online directory. Wherever relevant, these listings will appear in addition to YELLOWPAGES.COM's local advertisers, giving Switchboard users increased access to relevant local businesses and services in their area.

"This agreement emphasizes the increasing value of online directory traffic," said Brian McManus, executive vice president, Search and Directory at InfoSpace, Inc. "We are now able to offer our consumers a better, more relevant online experience by providing YELLOWPAGES.COM's rich and robust content through Switchboard's premiere technology and broad distribution network."

About YELLOWPAGES.COM

YELLOWPAGES.COM LLC is a joint venture operation of SBC Directory Operations and BellSouth Advertising and Publishing Corporation. Formed in late 2004, the company currently operates three leading Internet Yellow Pages sites - SMARTpages.com, RealPages.com and YELLOWPAGES.COM. The YELLOWPAGES.COM distribution network provides exposure to more than 70 million monthly consumer business searches. In late 2005, the three sites will merge to form a premier Internet Yellow Pages site at the URL www.yellowpages.com. SMARTpages.com local advertising is sold by SBC Yellow Pages. RealPages.com local advertising is sold by BellSouth Advertising and Publishing Corporation.

About InfoSpace, Inc.

InfoSpace, Inc. (NASDAQ: INSP) is a leader in private-label search, online directory and mobile entertainment. Infospace consists of two divisions - Search & Directory and Mobile. The Search & Directory division uses its unique metasearch technology to power a portfolio of branded Web sites and provide private-label search and online directory services. As part of the Search & Directory network, Switchboard (http://www.switchboard.com/) is a leading provider of Internet-based yellow pages and white pages that helps consumers by providing a fast, easy solution to finding businesses and people nationwide, and connects consumers with merchants through interactive and innovative directory technology. InfoSpace Mobile is a global provider and publisher of wireless content, including ring tones, games, graphics and more, as well as infrastructure solutions that help customers build stronger brands and generate revenue. InfoSpace Mobile distributes its applications through mobile operators, including Cingular Wireless, T-Mobile, Verizon Wireless, Nextel, Sprint, Virgin Mobile, Vodafone, O2, Orange, 3, TIM and Telefonica Moviles. More information can be found at www.infospaceinc.com.

*comScore Media Metrix, April 2005 US data