AS2642 California Department of Technology

LEG-CA-GOV - California Department of Technology · registered in the United States

IPv4 addresses131,84033 prefixes · 0.004% of announced IPv4

Rank in United States#483largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#1,515of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS2642 in ASN lookup Look up an IP in this network (165.66.0.1) All networks in United States

IPv4 prefixes

All 33 prefixes, in address order.

165.66.0.0/16
165.107.0.0/21
165.107.8.0/23
165.107.10.0/23
165.107.12.0/22
165.107.16.0/20
165.107.32.0/22
165.107.36.0/23
165.107.38.0/24
165.107.39.0/24
165.107.40.0/23
165.107.42.0/24
165.107.43.0/24
165.107.44.0/22
165.107.48.0/20
165.107.64.0/23
165.107.66.0/24
165.107.67.0/24
165.107.68.0/22
165.107.72.0/21
165.107.80.0/20
165.107.96.0/19
165.107.128.0/21
165.107.136.0/23
165.107.138.0/24
165.107.139.0/24
165.107.140.0/22
165.107.144.0/20
165.107.160.0/19
165.107.192.0/18
192.234.213.0/24
192.234.214.0/24
198.135.224.0/24

Other ASNs named California Department of Technology

1 other network uses the same organisation name; together with AS2642 they announce 1,168,896 IPv4 addresses.

ASNNameIPv4 addresses

AS1226CTA-42-AS1226 - California Department of Technology US1,037,056

Similar-sized networks in United States

ASNNameIPv4 addresses

AS329#480 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)131,840

AS5719#481 SUNYSB - State University of New York at Stony Brook131,840

AS2013#482 PACIFIC-GAS - PG&E131,840

AS5696#484 EXPRES - Express Scripts Incorporated131,840

AS22093#485 CCF-NETWORK - Cleveland Clinic Foundation131,840

AS29#486 YALE-AS - Yale University131,584

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