AS7270 — NET2PHONE

AS7270 announces 31 IPv4 prefixes covering 208,640 addresses and 0 IPv6 prefixes.

About this network

NET2PHONE is registered to IDT Corporation of Newark, New Jersey, and carries the network of its Net2Phone subsidiary — a cloud-communications and VoIP provider, and one of the earliest companies to commercialise voice over IP.

What it's used for

• The infrastructure behind Net2Phone's hosted PBX, SIP trunking and contact centre services, riding IDT's global carrier network.
• Reverse DNS on its routers resolves under inet.n2p.com, with names like ar2-ewr1-… — ewr being Newark, where IDT is headquartered.

Notable

• The footprint is unusually large for a voice provider — well over 200,000 IPv4 addresses across roughly a hundred prefixes — and includes legacy blocks such as 206.20.0.0/17, originally registered to Internet Online Services. IDT's address holdings accumulated across an earlier era of ISP and telecom acquisitions.
• The bulk of the space carries no reverse DNS, so it does not read as a subscriber access network; it is a carrier's own service infrastructure.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 66.33.128.0/18
• 111.235.152.0/24
• 169.132.0.0/16
• 204.13.143.0/24
• 205.228.245.0/24
• 206.20.0.0/16
• 207.113.10.0/24
• 207.202.0.0/20
• 207.202.21.0/24
• 207.202.24.0/22
• 207.202.35.0/24
• 207.202.36.0/22
• 207.202.40.0/21
• 207.202.48.0/20
• 207.202.66.0/23
• 207.202.68.0/22
• 207.202.72.0/21
• 207.202.84.0/22
• 207.202.88.0/21
• 207.202.96.0/19
• 213.166.103.0/24
• 216.53.0.0/18
• 216.53.64.0/19
• 216.53.96.0/24
• 216.53.98.0/23
• 216.53.100.0/22
• 216.53.104.0/21
• 216.53.112.0/23
• 216.53.115.0/24
• 216.53.116.0/22
• 216.53.120.0/21

Upstream networks

• AS198949 Radware Ltd
• AS174 Cogent Communications, LLC
• AS701 Verizon Business
• AS1299 Arelion Sweden AB
• AS9002 RETN Limited
• AS3356 Level 3 Parent, LLC
• AS3257 GTT Communications Inc.

Adjacent networks

• AS198949 Radware Ltd
• AS174 Cogent Communications, LLC
• AS701 Verizon Business
• AS1299 Arelion Sweden AB
• AS9002 RETN Limited
• AS3356 Level 3 Parent, LLC
• AS3257 GTT Communications Inc.

Internet exchanges

• New York International Internet Exchange — New York, United States