AS252 Headquarters, USAISC

DNIC-AS-00252 - Headquarters, USAISC · registered in the United States

IPv4 addresses69,1205 prefixes · 0.002% of announced IPv4

Rank in United States#806largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#2,483of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS252 in ASN lookup Look up an IP in this network (128.47.0.1) All networks in United States

IPv4 prefixes

All 5 prefixes, in address order.

128.47.0.0/16
131.92.188.0/22
192.70.236.0/24
204.37.16.0/21
204.37.24.0/24

IPv6 prefixes

All 1 prefix.

2001:480:34::/48

Other ASNs named Headquarters, USAISC

26 other networks use the same organisation name; together with AS252 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

AS289DNIC-AS-00289 - Headquarters, USAISC US88,320

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

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

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

AS36180#803 CISCO-IOT - Cisco IoT69,376

AS53488#804 MORRISBB - Optimum Online69,376

AS37#805 DNIC-AS-00037 - Navy Network Information Center (NNIC)69,120

AS397353#807 TDY-US1-DC - Teledyne Technologies Incorporated69,120

AS11711#808 TULAROSA-COMMUNICATIONS - TULAROSA COMMUNICATIONS, INC.68,864

AS16920#809 WINDRIVER - Wind River Systems, Inc.68,864

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