AS12033 Adams TelSystems, Inc.

ASN-AT-12033 - Adams TelSystems, Inc. · registered in the United States

IPv4 addresses40,9606 prefixes · 0.001% of announced IPv4

Rank in United States#1,575largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#4,270of 79,396 networks with IPv4

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

CountryUnited States18,679 ASNs registered there

Open AS12033 in ASN lookup Look up an IP in this network (66.226.96.1) All networks in United States

IPv4 prefixes

All 6 prefixes, in address order.

66.226.96.0/19
75.98.176.0/20
159.48.96.0/19
206.71.192.0/19
216.138.0.0/19
216.138.32.0/20

IPv6 prefixes

All 1 prefix.

2605:3000::/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