AS11537 Internet2

INTERNET2-RESEARCH-EDU - Internet2 · registered in the United States

IPv4 addresses7,99231 prefixes · <0.001% of announced IPv4

Rank in United States#3,446largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#10,912of 79,396 networks with IPv4

IPv66 x /486 prefixes

CountryUnited States18,679 ASNs registered there

Open AS11537 in ASN lookup Look up an IP in this network (64.57.16.1) All networks in United States

IPv4 prefixes

All 31 prefixes, in address order.

64.57.16.0/22
64.57.22.144/28
64.57.22.176/28
64.57.22.208/28
64.57.22.232/29
64.57.23.0/24
64.57.24.0/22
64.57.28.0/24
64.57.30.0/23
162.252.70.0/25
162.252.70.128/26
162.252.70.192/31
162.252.70.194/32
162.252.70.195/32
162.252.70.196/32
162.252.70.197/32
162.252.70.198/31
162.252.70.200/29
162.252.70.208/28
162.252.70.224/27
163.253.0.0/22
163.253.9.0/24
163.253.12.0/22
163.253.28.0/24
163.253.56.0/23
163.253.63.0/24
163.253.66.0/24
163.253.80.0/24
163.253.83.0/24
198.71.45.0/24
198.71.46.0/24

IPv6 prefixes

All 6 prefixes.

2001:468::/48
2001:468:1f0e::/48
2001:468:2f00::/48
2001:468:2f02::/48
2001:468:2f0a::/48
2001:468:2f0d::/48

Other ASNs named Internet2

4 other networks use the same organisation name; together with AS11537 they announce 17,152 IPv4 addresses.

ASNNameIPv4 addresses

AS396955INTERNET2-BLEND - Internet2 US3,784

AS11164INTERNET2-I2PX - Internet2 US2,304

AS396961INTERNET2-OSG - Internet2 US1,536

AS62775INTERNET2-ISS - Internet2 US1,536

Similar-sized networks in United States

ASNNameIPv4 addresses

AS400869#3443 BETHLEHEM-AREA-SCHOOL-DISTRICT - Bethlehem Area School District8,192

AS401564#3444 UMSV-01 - University of Mount Saint Vincent8,192

AS402639#3445 WASHTENAW-COMMUNITY-COLLEGE - Washtenaw8,192

AS14630#3447 INVESCO - Invesco Group Services, Inc.7,936

AS2901#3448 OGT-AS - Oso Grande Technologies, Inc.7,936

AS7806#3449 ASN7806 - Binary Net, LLC7,936

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