AS289 Headquarters, USAISC

DNIC-AS-00289 - Headquarters, USAISC · registered in the United States

IPv4 addresses88,3208 prefixes · 0.003% of announced IPv4

Rank in United States#679largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#2,037of 79,396 networks with IPv4

IPv62 x /482 prefixes

CountryUnited States18,679 ASNs registered there

Open AS289 in ASN lookup Look up an IP in this network (134.194.0.1) All networks in United States

IPv4 prefixes

All 8 prefixes, in address order.

134.194.0.0/16
147.241.0.0/19
147.241.56.0/21
147.241.80.0/20
147.241.128.0/21
147.241.160.0/20
147.241.176.0/21
192.88.110.0/24

IPv6 prefixes

All 2 prefixes.

2001:480:332::/48
2001:480:740::/48

Other ASNs named Headquarters, USAISC

26 other networks use the same organisation name; together with AS289 they announce 9,863,936 IPv4 addresses.

ASNNameIPv4 addresses

AS1540DNIC-ASBLK-01534-01546 - Headquarters, USAISC US7,430,144

AS4010DNIC-AS-04010 - Headquarters, USAISC US1,175,808

AS1637DNIC-AS-01637 - Headquarters, USAISC US201,728

AS1602DNIC-AS-01602 - Headquarters, USAISC US199,936

AS1649DNIC-AS-01649 - Headquarters, USAISC US131,584

AS1530DNIC-ASBLK-01529-01530 - Headquarters, USAISC US131,072

AS1493DNIC-ASBLK-01492-01493 - Headquarters, USAISC US119,808

AS1516DNIC-ASBLK-01513-01518 - Headquarters, USAISC US86,016

AS13DNIC-AS-00013 - Headquarters, USAISC US79,104

AS252DNIC-AS-00252 - Headquarters, USAISC US69,120

AS747DNIC-AS-00747 - Headquarters, USAISC US68,864

AS1501DNIC-ASBLK-01500-01502 - Headquarters, USAISC US41,984

AS213DNIC-AS-00213 - Headquarters, USAISC US32,768

AS588DIRECTRON - Headquarters, USAISC US4,096

AS153CTNOSC-ASN-153 - Headquarters, USAISC US512

AS258BRAGGSRI-EGP-AS - Headquarters, USAISC US512

AS538DNIC-AS-00538 - Headquarters, USAISC US512

AS1544DNIC-ASBLK-01534-01546 - Headquarters, USAISC US512

AS1508DNIC-AS-01508 - Headquarters, USAISC US256

AS670DNIC-AS-00670 - Headquarters, USAISC US256

AS672DNIC-AS-00672 - Headquarters, USAISC US256

AS673DNIC-AS-00673 - Headquarters, USAISC US256

AS1492DNIC-ASBLK-01492-01493 - Headquarters, USAISC US256

AS1523DNIC-ASBLK-01522-01526 - Headquarters, USAISC US256

AS575DNIC-AS-00575 - Headquarters, USAISC USIPv6 only

AS1542DNIC-ASBLK-01534-01546 - Headquarters, USAISC USIPv6 only

Similar-sized networks in United States

ASNNameIPv4 addresses

AS1856#676 DISN-PILOTNET2 - RTX BBN Technologies, Inc.88,832

AS13789#677 INTERNAP-BLK3 - Unitas Global88,576

AS15081#678 OMNI-FIBER - Omni Fiber88,320

AS54858#680 AS-SBI - Wave Broadband87,552

AS46231#681 WATCHCOMM-IN - Watch Communications87,552

AS2698#682 IASTATE-AS - Iowa State University of Science and Technology87,552

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