AS27500 ICANN

ICANN-MEETINGS - ICANN · registered in the United States

IPv4 addresses2,0481 prefixes · <0.001% of announced IPv4

Rank in United States#6,098largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#22,648of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS27500 in ASN lookup Look up an IP in this network (199.91.192.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

199.91.192.0/21

IPv6 prefixes

All 1 prefix.

2620:f:8000::/48

Other ASNs named ICANN

5 other networks use the same organisation name; together with AS27500 they announce 10,240 IPv4 addresses.

ASNNameIPv4 addresses

AS20144IMRS - ICANN US2,304

AS16876ICANN-DC - ICANN US2,048

AS26710ICANN-ANYCASTED-SERVICES - ICANN US1,792

AS40528ICANN-LAX - ICANN US1,792

AS26711ICANN-MDR - ICANN US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS14145#6095 REGIONS-ASN-3 - REGIONS FINANCIAL CORPORATION2,048

AS26716#6096 NETCRACKER - NetCracker Technology, Corporation2,048

AS27321#6097 ISC-F-AS - Internet Systems Consortium, Inc.2,048

AS29906#6099 WESTAT-AS1 - Westat, Inc.2,048

AS30006#6100 TOP-BUSINESS-INC - TOP BUSINESS INC2,048

AS35501#6101 DEERE-AS Deere & Company Corp2,048

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