Allot Rings Up Five New Mobile Operators Since the New Year

New Mobile Customers are Situated Throughout EMEA and Asia

BOSTON, March 30, 2011 - Allot Communications Ltd. (www.allot.com/ ) (NASDAQ: ALLT), a
leading supplier of service optimization and revenue generation solutions for
fixed and mobile broadband service providers worldwide, announced today five
new mobile operator customers since the start of 2011. The operators, which
are located throughout EMEA and Asia, selected Allot solutions based upon the
Service Gateway (www.allot.com/Service_Gateway_Sigma.html) and its
range of network and subscriber services
(www.allot.com/Service_Protector.html), enabling them to leverage
vital network intelligence and optimize their network, enhance and
personalize their users' experience and generate new revenue streams.

"This past year has seen the emergence of new charging and pricing models
that have completely changed the traditional rules of the game," said Shira
Levine, directing analyst for next gen OSS and policy at Infonetics Research.
"These new models, based on applications such as premium video, social
networking or just plain old email, enable the operator to offer the
personalized experience that users demand, and better manage the
ever-increasing flood of data traffic. Operators are increasingly aware that
in order to remain competitive, they must deploy these types of solutions
that provide the network intelligence necessary to achieve these aims."

"After a record breaking 2010, during which we firmly established Allot
as the leader in the fast-growing mobile data market, we've stepped up the
pace in 2011," said Rami Hadar, Allot's CEO and President. "Mobile now
accounts for approximately 40% of our total sales and we are seeing more and
more operators turning to us to help them differentiate their offering and
attract new revenues."

Allot Service Gateway solutions deployed at these customers include
MediaSwift (www.allot.com/MediaSwift_Video_Acceleration.html#products)
, an intelligent media caching solution which accelerates internet content
delivery and improves the user experience, thereby reducing peering link
costs; and CellWise (www.allot.com/Cell_Wise.html#products), an
innovative service designed to ensure fair use per cell by enabling mobile
Internet operators to manage traffic down to the individual cell. This in
turn alleviates backhaul congestion in real time and improves the user
experience.

About Allot Communications

Allot Communications Ltd. (NASDAQ: ALLT) is a leading provider of
intelligent IP service optimization and revenue generation solutions for
fixed and mobile broadband operators and large enterprises. Allot's rich
portfolio of solutions leverages Dynamic Actionable Recognition Technology
(www.allot.com/Dynamic_Actionable_Recognition_Technology.html ) (DART)
to transform pipes into smart networks that can rapidly and efficiently
deploy value added Internet services. Allot's scalable, carrier-grade
solutions provide the visibility, topology awareness, security, application
control and subscriber management that are vital to managing Internet service
delivery, enhancing user experience, containing operating costs, and
maximizing revenue in broadband networks.

    Allot Communications Contacts

    Jonathon Gordon
    Allot Communications
    Tel: +972-9-7619423
    jgordon@allot.com

    PR Contact
    Danielle Matthews
    Calysto Communications
    Tel: +1-404-266-2060 x27
    dmatthews@calysto.com

Allot Communications Contacts: Jonathon Gordon, Allot Communications, Tel: +972-9-7619423, jgordon at allot.com; PR Contact, Danielle Matthews, Calysto Communications, Tel: +1-404-266-2060 x27, dmatthews at calysto.com