AS3676 University of Iowa

UIOWA-AS - University of Iowa · registered in the United States

IPv4 addresses131,3269 prefixes · 0.004% of announced IPv4

Rank in United States#503largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#1,543of 79,396 networks with IPv4

IPv68 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS3676 in ASN lookup Look up an IP in this network (128.255.0.1) All networks in United States

IPv4 prefixes

All 9 prefixes, in address order.

128.255.0.0/16
129.255.0.0/16
198.49.182.0/25
198.49.182.130/31
198.49.182.132/30
198.49.182.136/29
198.49.182.144/28
198.49.182.160/27
198.49.182.192/26

IPv6 prefixes

All 1 prefix.

2620:0:e50::/45

Similar-sized networks in United States

ASNNameIPv4 addresses

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AS36081#502 STATE-OF-COLORADO-MNT-NETWORK - The Governor's Office of Information Technology131,328

AS5739#504 UCSC - University of California, Santa Cruz131,076

AS16#505 LBL - Lawrence Berkeley National Laboratory131,076

AS10242#506 USINTERNET - US Internet Corp131,072

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