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AS231
AS231 Michigan State University
MISU-231 - Michigan State University · registered in the United States
IPv4 addresses 783,360 18 prefixes · 0.025% of announced IPv4
Rank in United States #124 largest network in US by IPv4 space, of 18,338 · 0.06% of US
Rank worldwide #433 of 79,396 networks with IPv4
IPv6 65,534 x /48 31 prefixes
IPv4 prefixes
All 18 prefixes, in address order.
35.8.0.0/15 35.10.0.0/16 35.11.0.0/18 35.11.64.0/20 35.11.96.0/19 35.11.128.0/17 35.12.0.0/17 35.12.128.0/18 35.12.192.0/19 35.12.224.0/20 35.12.240.0/21 35.12.248.0/21 35.13.0.0/16 35.14.0.0/15 35.20.0.0/14 192.108.188.0/24 192.108.190.0/23 192.231.113.0/24
IPv6 prefixes
All 31 prefixes.
2605:dd00::/34 2605:dd00:4001::/48 2605:dd00:4003::/48 2605:dd00:4004::/46 2605:dd00:4008::/45 2605:dd00:4010::/44 2605:dd00:4020::/43 2605:dd00:4040::/42 2605:dd00:4080::/41 2605:dd00:4100::/40 2605:dd00:4200::/39 2605:dd00:4400::/38 2605:dd00:4800::/37 2605:dd00:5000::/36 2605:dd00:6000::/35 2605:dd00:8000::/48 2605:dd00:8001::/48 2605:dd00:8002::/47 2605:dd00:8004::/46 2605:dd00:8008::/45 2605:dd00:8010::/44 2605:dd00:8020::/43 2605:dd00:8040::/42 2605:dd00:8080::/41 2605:dd00:8100::/40 2605:dd00:8200::/39 2605:dd00:8400::/38 2605:dd00:8800::/37 2605:dd00:9000::/36 2605:dd00:a000::/35 2605:dd00:c000::/34
Other ASNs named Michigan State University
1 other network uses the same organisation name; together with AS231 they announce 787,456 IPv4 addresses.
ASN Name IPv4 addresses
AS400066 FRIB-01 - Michigan State University US 4,096
Similar-sized networks in United States
ASN Name IPv4 addresses
AS46887 #121 CROWNCASTLE-AS46887 - Crown Castle Fiber LLC813,312
AS367 #122 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)811,776
AS33070 #123 RMH-14 - Rackspace Hosting798,961
AS11232 #125 MIDCO-NET - Midcontinent Communications779,776
AS8103 #126 STATE-OF-FLA - Florida Department of Management Services - Division of Telecommunications772,352
AS243 #127 HARRIS-ATD-AS - L3Harris Technologies, Inc.749,824
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