AS40237 United Telephone Company

UNITED-TELEPHONE - United Telephone Company · registered in the United States

IPv4 addresses96,25612 prefixes · 0.003% of announced IPv4

Rank in United States#644largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#1,937of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryUnited States18,679 ASNs registered there

Open AS40237 in ASN lookup Look up an IP in this network (38.53.128.1) All networks in United States

IPv4 prefixes

All 12 prefixes, in address order.

38.53.128.0/18
66.128.240.0/20
74.51.0.0/20
76.72.176.0/20
138.28.128.0/18
152.36.64.0/18
162.247.208.0/21
170.117.240.0/21
199.45.192.0/19
206.251.208.0/20
208.86.64.0/21
209.217.0.0/18

IPv6 prefixes

All 1 prefix.

2604:e200::/32

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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