Vonage Offers Customers Free Calling to Japan

HOLMDEL, New Jersey, March 12, 2011 - — Company Working to Unite Families and Friends Following Earthquake –

Vonage Holdings Corp. (NYSE: VG), a leading provider of low-cost
communications services connecting individuals through broadband devices
worldwide, today announced that it will be waiving per-minute calling charges
beginning 8:30 p.m. ET March 11, 2011 until 8:30 p.m. ET March 18, 2011 for
customers calling from their Vonage home phones to Japan in the wake of the
devastating earthquake and tsunami that hit the country today.

"We care deeply about our customers and want to ensure they can reach
their loved ones in the aftermath of this horrific natural disaster," said
Marc Lefar, chief executive officer of Vonage. "Our thoughts and prayers go
out to everyone impacted by the earthquake in Japan and we hope this helps
keep friends and family connected at this time of great need."

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