AS557 University of Maine System

UMAINE-SYS-AS - University of Maine System · registered in the United States

IPv4 addresses292,60816 prefixes · 0.009% of announced IPv4

Rank in United States#237largest network in US by IPv4 space, of 18,338 · 0.02% of US

Rank worldwide#828of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryUnited States18,679 ASNs registered there

Open AS557 in ASN lookup Look up an IP in this network (64.45.64.1) All networks in United States

IPv4 prefixes

All 16 prefixes, in address order.

64.45.64.0/18
65.18.0.0/18
65.18.64.0/19
65.18.96.0/20
130.111.0.0/16
141.114.0.0/16
169.244.0.0/16
198.148.217.0/24
198.182.161.0/24
198.182.162.0/23
198.202.151.0/24
199.33.141.0/24
204.137.240.0/24
204.197.0.0/17
207.166.224.0/19
209.222.192.0/19

IPv6 prefixes

All 1 prefix.

2610:48::/32

Similar-sized networks in United States

ASNNameIPv4 addresses

AS18#234 UTEXAS - University of Texas at Austin299,520

AS683#235 ARGONNE-AS - Argonne National Laboratory297,216

AS11714#236 NETWORK NEBRASKA - Network Nebraska294,400

AS19957#238 STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC291,072

AS5056#239 AUREON-5056 - Aureon Network Services289,792

AS18747#240 IFX18747 - IFX Corporation289,536

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