AS396961 Internet2

INTERNET2-OSG - Internet2 · registered in the United States

IPv4 addresses1,5364 prefixes · <0.001% of announced IPv4

Rank in United States#6,876largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#26,171of 79,396 networks with IPv4

IPv66 x /484 prefixes

CountryUnited States18,679 ASNs registered there

Open AS396961 in ASN lookup Look up an IP in this network (163.253.29.1) All networks in United States

IPv4 prefixes

All 4 prefixes, in address order.

163.253.29.0/24
163.253.70.0/23
163.253.72.0/23
163.253.74.0/24

IPv6 prefixes

All 4 prefixes.

2001:468:1f16::/48
2001:468:2806::/47
2001:468:2808::/47
2001:468:2810::/48

Other ASNs named Internet2

4 other networks use the same organisation name; together with AS396961 they announce 17,152 IPv4 addresses.

ASNNameIPv4 addresses

AS11537INTERNET2-RESEARCH-EDU - Internet2 US7,992

AS396955INTERNET2-BLEND - Internet2 US3,784

AS11164INTERNET2-I2PX - Internet2 US2,304

AS62775INTERNET2-ISS - Internet2 US1,536

Similar-sized networks in United States

ASNNameIPv4 addresses

AS142561#6873 XTDEF-LIMITED-AS-AP - XTDEF Limited1,536

AS400799#6874 PUFFERFISH-STUDIOS - Pufferfish Studios LLC1,536

AS10880#6875 YAHOO-AN2 - Yahoo Holdings Inc.1,536

AS400978#6877 GETREALIP-ASN1 - 341,536

AS20251#6878 SOLARWINDSAUSTIN - SolarWinds North America, Inc.1,536

AS395506#6879 KN-DFW-ASN - KODIAK NETWORKS, INC.1,536

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources