Exhibit 21.1

Vonage Holdings Corp.

List of Subsidiaries

Name	Jurisdiction of Incorporation
Vonage America Inc.	Delaware
Vonage Wireless Inc.	Delaware
Vonage Business Inc.	Delaware
Vonage Business Networks, Inc.	Delaware
Vonage Worldwide Inc.	Delaware
Vonage Canada Corp.	British Columbia, Canada
Vonage Business Canada Corp.	British Columbia, Canada
Vonage A/S	Denmark
Vonage B.V.	The Netherlands
Vonage Limited	United Kingdom
Vonage India Private Limited	India
Vonage Applications Inc.	Delaware
Vonage Apps. Ltd.	Israel
Vonage Foundation Corp.	Delaware (Non-Profit)
Nexmo Inc.	Delaware
Nexmo Limited	England & Wales
Nexmo Asia Pacific Limited	Hong Kong
Nexmo Pte. Ltd.	Singapore
Nexmo World Services Limited	England & Wales
Nexmo Software Services Company Ltd.	China
Vonage Japan G.K.	Japan
Vonage France SARL	France
Nexmo Sweden AB	Sweden
Nexmo Digital Inc.	Delaware
TokBox Inc.	Delaware
Vonage Australia PTY Limited	Australia
Vonage NVM Holding Ltd	England & Wales
NewVoiceMedia Ltd.	England & Wales
NewVoiceMedia Inc.	Delaware
NewVoiceMedia Pty Ltd.	Australia
NewVoiceMedia sP ZOO	Poland
NewVoiceMedia Germany GmbH	Germany
NewVoiceMedia Euro Holdings SARL	Luxembourg
NewVoiceMedia UK Ltd.	England & Wales
NewVoiceMedia Asia Pacific Ltd.	Hong Kong
NVM (Technology) Beijing Limited Company	Beijing