AS400666 Dobson Technologies - Transport and Telecom Solutions, LLC

DOBSON-ASN-02 - Dobson Technologies - Transport and Telecom Solutions, LLC · registered in the United States

IPv4 addresses3,3285 prefixes · <0.001% of announced IPv4

Rank in United States#5,245largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#17,870of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS400666 in ASN lookup Look up an IP in this network (57.138.20.1) All networks in United States

IPv4 prefixes

All 5 prefixes, in address order.

57.138.20.0/24
57.138.134.0/23
57.138.160.0/21
57.138.175.0/24
150.253.111.0/24

Other ASNs named Dobson Technologies - Transport and Telecom Solutions, LLC

2 other networks use the same organisation name; together with AS400666 they announce 130,048 IPv4 addresses.

ASNNameIPv4 addresses

AS30029DOBSONTECHTTS - Dobson Technologies - Transport and Telecom Solutions, LLC US78,336

AS400662DOBSON-ASN-02 - Dobson Technologies - Transport and Telecom Solutions, LLC US48,384

Similar-sized networks in United States

ASNNameIPv4 addresses

AS399440#5242 AS-HEARTLANDFIBER - Heartland Fiber, Inc.3,328

AS399937#5243 UCMCLOUD - Cisco Webex LLC3,328

AS400385#5244 CITIZENS-TELEPHONE-ASN-01 - Citizens Telephone Corporation3,328

AS401097#5246 DICKINSON-EDU - Dickinson College3,328

AS13786#5247 SEABORN - Seabras 1 USA, LLC3,072

AS7194#5248 BWP - City of Burbank3,072

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