21Vianet Group, Inc. to Announce Fourth Quarter and Full Year 2012 Financial Results

Wed Feb 6, 2013 9:00am EST

* Reuters is not responsible for the content in this press release.


BEIJING, Feb. 6, 2013 (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 fourth quarter and full year 2012 financial results on
Tuesday, March 5, 2013 after market close. The Company will hold a conference call on Wednesday,
March 6, 2013 at 8:00 am Eastern Time, or 9:00 pm Beijing Time to discuss the financial results.
Listeners may access the call by dialing the following numbers:

 United States:            +1-646-254-3515  
 International Toll Free:  +1-855-500-8701  
 China Domestic:           400-1200654      
 Hong Kong:                +852-3051-2745   
 Conference ID:            # 98281809       

The replay will be accessible through March 13, 2013 by dialing the following numbers:

 United States Toll Free:  +1-855-452-5696  
 International:            +61-2-8199-0299  
 Conference ID:            # 98281809       

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

About 21Vianet

21Vianet Group, Inc. 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 services, 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 1,900 customers that span many industries ranging from
Internet companies to government entities and blue-chip enterprises to small- to mid-sized

CONTACT: Investor Relations Contact:
         ICR, Inc.
         Jeremy Peruski
         +1 (646) 405-4922