21Vianet Group, Inc. to Announce First Quarter 2011 Financial Results

BEIJING, May 18, 2011 (GLOBE NEWSWIRE) -- 21Vianet Group, Inc. (Nasdaq:VNET) ("21Vianet" or the "Company"), the largest carrier-neutral Internet data center services provider in China, today announced that it plans to release its first quarter 2011 financial results on Wednesday, June 1, 2011 after market close.

The Company will hold a conference call on Thursday, June 2, 2011 at 8:00 am Eastern Time to discuss the financial results. Listeners may access the call by dialing the following numbers:

United States Toll Free:   +1-866-405-2350
International:    +1-718-354-1231
China Domestic:    400-1200712
Hong Kong:    +852-2561-8854
Conference ID:    68002039

The replay will be accessible through June 8, 2011 by dialing the following numbers:       

United States Toll Free:    +1-866-214-5335
International:    +1-718-354-1232
Conference ID:    68002039

A webcast of the conference call will be available through the Company's investor relation website at http://ir.21vianet.com

About 21Vianet

21Vianet is the largest carrier-neutral Internet data center services provider in China. 21Vianet provides hosting and related services, managed network services and cloud computing infrastructure, improving the reliability, security and speed of its customers' Internet connections through 21Vianet's Internet infrastructure. Customers may locate their servers and networking equipment in 21Vianet's data centers and connect to China's Internet backbone through 21Vianet's extensive fiber optic network. In addition, 21Vianet's proprietary smart routing technology, BroadEx, enables customers' data to be delivered across the Internet in a faster and more reliable manner. 21Vianet operates in 33 cities throughout China, servicing a diversified and loyal base of more than 1,300 customers that span many industries ranging from Internet companies to government entities and blue-chip enterprises to small- to mid-sized enterprises.

CONTACT: Investor Relations Contact:

         ICR, LLCJeremy Peruski

         +1 (646) 405-4922

         IR@21Vianet.com
Source: 21Vianet

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