AS153595 Citigroup Inc.

CITIGROUPINC-AS-AP - Citigroup Inc. · registered in the United States

IPv4 addresses1,5366 prefixes · <0.001% of announced IPv4

Rank in United States#7,151largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#27,133of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS153595 in ASN lookup Look up an IP in this network (192.193.45.1) All networks in United States

IPv4 prefixes

All 6 prefixes, in address order.

192.193.45.0/24
192.193.48.0/24
192.193.73.0/24
192.193.76.0/24
192.193.123.0/24
192.193.131.0/24

Other ASNs named Citigroup Inc.

14 other networks use the same organisation name; together with AS153595 they announce 40,448 IPv4 addresses.

ASNNameIPv4 addresses

AS1696CITIGROUP-1696 - Citigroup Inc. US6,144

AS4996SBI - Citigroup Inc. US5,632

AS32287SOLANA-CITIPLEX - Citigroup Inc. US5,376

AS3081CITI15 - Citigroup Inc. US4,864

AS2912CITI5 - Citigroup Inc. US3,584

AS25883CITIGROUP - Citigroup Inc. US3,584

AS32111CITIGROUP-JAPAN - Citigroup Inc. US2,560

AS2908CITI1 - Citigroup Inc. US1,536

AS3073CITI7 - Citigroup Inc. US1,280

AS30284CITIGROUP-BANAMEX - Citigroup Inc. US1,280

AS35967LAVATRADING-CITI01 - Citigroup Inc. US1,280

AS22081CITILAB - Citigroup Inc. US1,024

AS33463CITIGROUP-GLOBAL-ANYCAST-DNS - Citigroup Inc. US512

AS2909CITI2 - Citigroup Inc. US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS63219#7148 GOVNET-SERVICES - GovNET1,536

AS63238#7149 UPTEL - Upchurch Telecom & Data, Inc.1,536

AS63370#7150 GSOC-63370 - Georgia System Operations, Corporation1,536

AS203120#7152 GTGL Global Telecom Group LLC1,536

AS205196#7153 BIGCORE-ASN BIG CORE LLC1,536

AS207223#7154 GLOBALCON Global Connections Network LLC1,536

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