Capitalizing on Mobile Internet and Data Growth Opportunities

BEIJING and HONG KONG, Feb. 7, 2012 (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 is a provisional successful bidder for radio spectrum
in the 2.3 GHz band to provide broadband wireless access ("BWA")
services in Hong Kong. 21Vianet is one of three provisional successful
bidders, each of whom won one frequency band of 30 MHz. 21Vianet
submitted a final bid of HK$150 million (US$19.3 million), which was
the minimum bidding price set by the Hong Kong Telecommunications
Authority for the spectrum.

The Hong Kong Telecommunications Authority will issue a 15-year unified
telecommunications carrier license to successful bidders, allowing
licensees to provide fixed, mobile or a combination of these services
using the licensees' frequency bands. Provisional successful bidders
will be required to pay spectrum utilization fees within 30 business
days and submit a refundable performance bond of HK$150 million
(US$19.3 million) as a guarantee of compliance with the network and
service rollout requirements.

In connection with these fees, 21Vianet obtained a non-binding letter
of intent from China Development Bank, in which the bank indicated its
intention to provide a US$30 million credit facility to 21Vianet to
finance the BWA spectrum license.

"We are focused on capturing the best market opportunities and are
pleased to win the Hong Kong spectrum auction with the minimum required
bid," said Mr. Josh Chen, founder, chairman and chief executive officer
of 21Vianet. "We believe that this opportunity is a cost-effective
means of opening up more growth opportunities for 21Vianet. We are
seeing an accelerating business trend towards accessing data through
the mobile Internet. By extending our Internet infrastructure services
into the wireless Internet, we aim to further embed 21Vianet into the
core Internet infrastructure in Greater China."

"To utilize the BWA spectrum, we aim to partner with established mobile
operators to successfully extend our service offerings," Mr. Chen
continued. "At the same time, we also want to reaffirm our commitment
to a carrier-neutral value position and our intent to remain a B2B
service provider. Our focus remains on becoming more integrated with
the broader Internet data network throughout Greater China."

Pursuant to the requirements of the Hong Kong Telecommunications
Authority, 21Vianet will discuss the terms of its license and the
network operations plan with the authority in the coming weeks.
21Vianet also plans to explore potential partnerships with local
business partners to combine its own expertise in Internet
infrastructure services with its business partners' financial
resources, local platform and knowledge.

Exchange Rate

This press release contains translations of certain Hong Kong dollar
amounts into US dollars at specified rates solely for the convenience
of readers. All translations from HK$ to US dollars, in this press
release, were made at a rate of HK$7.7538 to US$1.00, the noon buying
rate in effect on January 27, 2012 in the City of New York for cable
transfers in HK$ per US$ as certified for customs purposes by the
Federal Reserve Bank of New York.

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 1,400 customers
that span many industries ranging from Internet companies to government
entities and blue-chip enterprises to small- to mid-sized enterprises.

Safe Harbor Statement

This announcement contains forward-looking statements. These
forward-looking statements are made under the "safe harbor" provisions
of the U.S. Private Securities Litigation Reform Act of 1995. These
statements can be identified by terminology such as "will," "expects,"
"anticipates," "future," "intends," "plans," "believes," "estimates"
and similar statements. Among other things, quotations from management
in this announcement, as well as 21Vianet's strategic and operational
plans, contain forward-looking statements. 21Vianet may also make
written or oral forward-looking statements in its reports filed with,
or furnished to, the U.S. Securities and Exchange Commission, in its
annual reports to shareholders, in press releases and other written
materials and in oral statements made by its officers, directors or
employees to third parties. Statements that are not historical facts,
including statements about 21Vianet's beliefs and expectations, are
forward-looking statements. Forward-looking statements involve inherent
risks and uncertainties. A number of factors could cause actual results
to differ materially from those contained in any forward-looking
statement, including but not limited to the following: 21Vianet's goals
and strategies; 21Vianet's expansion plans; the expected growth of the
data center services market; expectations regarding demand for, and
market acceptance of, 21Vianet's services; 21Vianet's expectations
regarding keeping and strengthening its relationships with customers;
21Vianet's plans to invest in research and development to enhance its
solution and service offerings; and general economic and business
conditions in the regions where 21Vianet provides solutions and
services. Further information regarding these and other risks is
included in 21Vianet's reports filed with, or furnished to the
Securities and Exchange Commission. 21Vianet does not undertake any
obligation to update any forward-looking statement, except as required
under applicable law. All information provided in this press release
and in the attachments is as of the date of this press release, and
21Vianet undertakes no duty to update such information, except as
required under applicable law.


CONTACT: Investor Relations Contact:
         
         ICR, Inc.
         Jeremy Peruski
         +1 (646) 405-4922
         IR@21Vianet.com