Vonage Extends Free Calling to Japan

Company will continue to waive per-minute charges through April 10, 2011

HOLMDEL, New Jersey, March 18, 2011 - Vonage Holdings Corp. (NYSE: VG), a leading provider of low-cost
communications services connecting individuals through broadband devices
worldwide, today announced that in light of the continued uncertainty in
Japan, it will continue to waive per-minute calling charges for customers
calling from their Vonage home phones to Japan until 8:30 p.m. on April 10,
2011.

About Vonage

Vonage (NYSE: VG) is a leading provider of low-cost communications
services connecting individuals through broadband devices worldwide. Our
technology serves approximately 2.4 million subscribers. We provide
feature-rich, affordable communication solutions that offer flexibility,
portability and ease-of-use. Our Vonage World plan offers unlimited calling
to more than 60 countries with popular features like call waiting, call
forwarding and voicemail - for one low monthly rate. Vonage's service is sold
on the web and through regional and national retailers including Wal-Mart
Stores Inc. and is available to customers in the U.S.
(www.vonage.com), Canada (www.vonage.ca) and the United Kingdom
(www.vonage.co.uk).

Vonage Holdings Corp. is headquartered in Holmdel, New Jersey. Vonage(R)
is a registered trademark of Vonage Marketing Inc., a subsidiary of Vonage
Holdings Corp.

To follow Vonage on Twitter, please visit
www.twitter.com/vonage_voice. To become a fan on Facebook, go to
www.facebook.com/vonage.

Vg-a

Arpie McQueen, Vonage, Senior Manager, Corporate Communications, +1-732-218-6075, amcqueen at vonage.com; Christine Bock, Ruder Finn, +1-714-206-9800, bockc at ruderfinn.com