AS20144 ICANN

IMRS - ICANN · registered in the United States

IPv4 addresses2,3046 prefixes · <0.001% of announced IPv4

Rank in United States#5,819largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#20,713of 79,396 networks with IPv4

IPv610 x /486 prefixes

CountryUnited States18,679 ASNs registered there

Open AS20144 in ASN lookup Look up an IP in this network (192.0.37.1) All networks in United States

IPv4 prefixes

All 6 prefixes, in address order.

192.0.37.0/24
192.0.38.0/24
192.0.40.0/23
199.7.82.0/23
199.7.94.0/23
199.43.132.0/24

IPv6 prefixes

All 6 prefixes.

2001:500:3::/48
2001:500:8c::/48
2001:500:9c::/46
2602:800:9004::/47
2620:0:22b0::/48
2620:0:2ee0::/48

Other ASNs named ICANN

5 other networks use the same organisation name; together with AS20144 they announce 10,240 IPv4 addresses.

ASNNameIPv4 addresses

AS16876ICANN-DC - ICANN US2,048

AS27500ICANN-MEETINGS - 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

AS12161#5816 DAO - dao Consulting, LLC2,304

AS62766#5817 SJBCOM-01 - SJB Communications2,304

AS398875#5818 PUBLIC-SAFETY - The City of New York2,304

AS7280#5820 YAHOO-FC - Yahoo Holdings Inc.2,304

AS63420#5821 NETACTUATE - NetActuate, Inc2,304

AS25671#5822 AIRENET-NUEVO-CA - Wholesale Air-time Inc.2,304

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