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. ABOUT SUPERMEDIA SuperMedia Inc. (NASDAQ: SPMD) and its marketing consultants in local communities help small- and medium-sized businesses grow using marketing solutions across print, online, mobile and social media. SuperMedia solutions include: the award-winning Superpages shopping guide mobile site and apps, SocialEze® social marketing solution and SuperGuarantee® program; search engine marketing, directories published for Verizon®, FairPoint® and Frontier®, Superpages.com®, website, video, search engine optimization and reputation monitoring; print and digital display advertising, direct mail solutions and EveryCarListed.com® to shop for new and used vehicles. For more information, visit www.supermedia.com. Important Information For Investors and Security Holders This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval. The proposed merger transaction between SuperMedia Inc. (“SuperMedia”) and Dex One Corporation (“Dex”) will be submitted to the respective stockholders of SuperMedia and Dex. In connection with the proposed transaction, Newdex, Inc., a subsidiary of Dex (“Newdex”), will file with the Securities and Exchange Commission (“SEC”) a registration statement on Form S-4 that will include a joint proxy statement/prospectus to be used by SuperMedia and Dex to solicit the required approval of their stockholders and that also constitutes a prospectus of Newdex. INVESTORS AND SECURITY HOLDERS OF SUPERMEDIA AND DEX ARE ADVISED TO CAREFULLY READ THE REGISTRATION STATEMENT AND JOINT PROXY STATEMENT/PROSPECTUS (INCLUDING ALL AMENDMENTS AND SUPPLEMENTS) AND OTHER RELEVANT DOCUMENTS FILED WITH THE SEC WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE TRANSACTION, THE PARTIES TO THE TRANSACTION AND THE RISKS ASSOCIATED WITH THE TRANSACTION. A definitive joint proxy statement/prospectus will be sent to security holders of SuperMedia and Dex seeking their approval of the proposed transaction. Investors and security holders may obtain a free copy of the joint proxy statement/prospectus (when available) and other relevant documents filed by SuperMedia and Dex with the SEC from the SEC’s website at www.sec.gov. Copies of the documents filed by SuperMedia with the SEC will be available free of charge on SuperMedia’s website at www.supermedia.com under the tab “Investors” or by contacting SuperMedia’s Investor Relations Department at (877) 343-3272. Copies of the documents filed by Dex with the SEC will be available free of charge on Dex’s website at www.dexone.com under the tab “Investors” or by contacting Dex’s Investor Relations Department at (800) 497-6329. SuperMedia and Dex and their respective directors, executive officers and certain other members of management may be deemed to be participants in the solicitation of proxies from their respective security holders with respect to the transaction. Information about these persons is set forth in SuperMedia’s proxy statement relating to its 2012 Annual Meeting of Shareholders and Dex’s proxy statement relating to its 2012 Annual Meeting of Stockholders, as filed with the SEC on April 11, 2012 and March 22, 2012, respectively, and subsequent statements of changes in beneficial ownership on file with the SEC. These documents can be obtained free of charge from the sources described above. Security holders and investors may obtain additional information regarding the interests of such persons, which may be different than those of the respective companies’ security holders generally, by reading the joint proxy statement/prospectus and other relevant documents regarding the transaction (when available), which will be filed with the SEC.