AS16478 Colonial IU 20

COLONIALNET-IU20 - Colonial IU 20 · registered in the United States

IPv4 addresses4,0961 prefixes · <0.001% of announced IPv4

Rank in United States#4,551largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#15,452of 79,396 networks with IPv4

IPv6256 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS16478 in ASN lookup Look up an IP in this network (216.162.112.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

216.162.112.0/20

IPv6 prefixes

All 1 prefix.

2620:11f:4000::/40

Similar-sized networks in United States

ASNNameIPv4 addresses

AS53274#4548 SKYRUNNER-INC - Skyrunner, Inc.4,096

AS11889#4549 IVANET-DAL - iBasis, Inc.4,096

AS14157#4550 GENWORTH-MI - GENWORTH FINANCIAL, Inc.4,096

AS17326#4552 CONCORDIA-COLLEGE - Concordia College4,096

AS22711#4553 GNA-CORP-GENWORTH-FINANCIAL - Genworth North America Corporation4,096

AS22804#4554 REDHELM-CLOUD - Ideal Integrations, LLC4,096

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