Dex One Corporation to Announce Second Quarter 2011 Results on July 28, 2011

Results Release to be Distributed at 6:30 a.m. (ET)

Conference Call to Commence at 8:30 a.m. (ET)

CARY, N.C.--(BUSINESS WIRE)--Dex One Corporation (NYSE: DEXO) will release its second quarter 2011 results on Thursday, July 28 at approximately 6:30 a.m. (ET). The release will be posted to the Investor Relations section of the company’s corporate website, www.DexOne.com. The company invites investors and other interested parties to participate in a conference call at 8:30 a.m. (ET) on the same day to hear commentary regarding results. Alfred T. Mockett, CEO, and Steven M. Blondy, executive vice president and CFO, will host the call. Remarks will be followed by a question and answer session.

Individuals within the United States can access the call by dialing 800-857-9771 - others should dial 517-308-9319. The pass code for the call is “Dex One”. In order to ensure a prompt start time, please dial into the call by 8:20 a.m. (ET). In addition, a live webcast will be available at www.DexOne.com and an archived version will be accessible for up to one year. A replay of the conference call can also be accessed from within the United States by dialing 800-372-5608 and internationally by dialing 402-344-6818. There is no pass code for the telephonic replay, which will be available through August 11, 2011.

About Dex One Corporation

Dex One Corporation (NYSE: DEXO) is a leading marketing solutions provider helping local businesses and their customers connect wherever and whenever they choose to search. Building on its heritage of delivering print-based solutions, the company provides integrated products and services to help its clients establish their digital presence and generate leads. Dex One’s locally based marketing experts offer a broad network of local marketing solutions including online, mobile and print search solutions, such as DexKnows.com. For more information, visit www.DexOne.com.