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Autonomous System

AS30029 · Dobson Technologies - Transport and Telecom Solutions, LLC

Overview

AS30029 is announced on the Internet: RIPE RIS route collectors currently see 37 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 131,584 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 4 upstream neighbours (transit providers or peers) and 23 downstream neighbours (customers or networks it carries). Its most visible upstreams are Cogent Communications, LLC (AS174), GTT Communications Inc. (AS3257), and Zayo Bandwidth (AS6461). AS30029 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 1:53 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 57.138.0.1, the first address of 57.138.0.0/16. An address picked inside a prefix may not answer (nothing listens there, or the network filters probes): the trace then shows the path up to the last network that replies.

Announced prefixes

IPv4 prefixes (37 prefixes)

PrefixAddresses
57.138.0.0/1665,536
64.19.96.0/198,192
64.137.160.0/198,192
64.137.162.0/23512
64.137.164.0/23512
64.137.170.0/23512
64.137.177.0/24256
64.137.179.0/24256
64.137.181.0/24256
64.137.182.0/24256
64.137.185.0/24256
64.137.186.0/24256
64.137.187.0/24256
64.137.188.0/24256
98.142.64.0/204,096
137.239.224.0/198,192
137.239.224.0/23512
137.239.226.0/23512
137.239.228.0/23512
137.239.230.0/23512
137.239.234.0/23512
150.253.64.0/1816,384
150.253.80.0/24256
150.253.81.0/24256
150.253.96.0/24256
150.253.125.0/24256
162.211.18.0/23512
162.211.19.0/24256
198.98.24.0/212,048
199.15.192.0/212,048
199.15.193.0/24256
199.15.194.0/23512
199.15.196.0/23512
199.15.198.0/23512
206.72.224.0/198,192
206.72.247.0/24256
216.198.160.0/198,192

IPv6 prefixes (1 prefix)

Prefix
2604:b800::/32

Neighbours

Upstreams (transit or peers) (4)

ASNetworkVisibility
AS174Cogent Communications, LLC2,266
AS3257GTT Communications Inc.1,463
AS6461Zayo Bandwidth650
AS286GTT Communications Inc.16

Downstreams (customers) (23)

ASNetworkVisibility
AS22346Newroads Telecom447
AS29734Tuttle Development Authority432
AS399417VortexOK.net LLC282
AS20289ISG Technology259
AS394579Oklahoma Western Telephone Company259
AS400396Jackson County Memorial Hospital259
AS397582WOW-World of Wireless258
AS43937Playtech Software Ltd256
AS63463Express Employment Professionals241
AS36860BancFirst240
AS397497-218
AS15005-215
AS32350-127
AS394981-86
AS399198-83
AS400662-55
AS20329-39
AS395740-28
AS54214-26
AS398866-15
AS399706-14
AS393844-7
AS399702-5

Visibility is RIPEstat's count of how often the route collectors observed the link. It compares neighbours with each other; it is not a traffic volume.

How to read this page

An Autonomous System (AS) is a network run under one routing policy: an internet provider, a cloud, a content network, a university. Each one has a number, its ASN, assigned by a regional registry (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), and uses BGP, the protocol networks use to tell each other where addresses are, to announce the blocks of addresses it delivers to.

A prefix such as 203.0.113.0/24 is a block of addresses: the number after the slash says how many bits are fixed, so a /24 holds 256 IPv4 addresses and a /16 holds 65,536. Networks often announce a large block and smaller pieces of it at the same time, which is why the address total counts each address once.

Neighbours come from the paths themselves. A network that appears just before this one in a path, on the collector's side, is an upstream: a transit provider or a peer. One that appears just after it is a downstream, usually a customer. Peering at an internet exchange also shows up as an upstream, so the upstream list is not a list of paid transit.

The data comes from RIPEstat, run by the RIPE NCC, which gathers the routing tables of hundreds of networks through its RIS route collectors. This page reads it when it is visited and keeps it for 12 hours at most; the BGP viewer reads it live.

Frequently asked questions

How do I find the ASN of an IP address?
Type the address in the BGP viewer: it shows the prefix that covers it, the AS that originates that prefix and the paths seen towards it. A traceroute also names the network of each hop, so you can see every AS a connection crosses.
Why does one company have several ASNs?
Large operators split their network by region, by activity or by history: a cloud may use one number for its backbone and another for a region, and every acquisition brings its own numbers. Each number has its own page, with its own prefixes and neighbours.
Why do prefix counts differ from one site to another?
Each source sees the routing table from different collectors, at a different time, and counts differently: some include prefixes withdrawn in recent weeks, some merge a block and its pieces. This page counts the prefixes RIPE RIS collectors see originated by the network at the end of the latest two-week window, and counts each IPv4 address once.
Is this the list of IP ranges of a cloud provider?
It is what its networks announce, which is what the Internet routes to them. Many providers also publish an official list of ranges per service and region; that list is the reference for firewall rules, because a range can be announced before it is used, or announced by another of their AS numbers.