AS63100 Carnegie Telephone Company, Inc.

CTCI - Carnegie Telephone Company, Inc. · registered in the United States

IPv4 addresses4,0962 prefixes · <0.001% of announced IPv4

Rank in United States#4,825largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#16,299of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS63100 in ASN lookup Look up an IP in this network (38.10.72.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

38.10.72.0/21
104.153.0.0/21

Similar-sized networks in United States

ASNNameIPv4 addresses

AS62509#4822 WISD-AS - Waxahachie Independent School District4,096

AS62592#4823 HOPI - HOPI TELECOMMUNICATIONS4,096

AS62825#4824 WTC-40-AS - Walnut Communications4,096

AS63160#4826 KIRKLAND-ELLIS-CO - Kirkland & Ellis LLP4,096

AS63400#4827 LUBBOCKISD-ASN - Lubbock Independent School District4,096

AS64294#4828 PAC-GCS - Panasonic Avionics Corporation4,096

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