Skip to content

Autonomous System

AS55039 · Fatbeam, LLC

Overview

AS55039 is announced on the Internet: RIPE RIS route collectors currently see 66 IPv4 prefixes and 15 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 33,536 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 11 upstream neighbours (transit providers or peers) and 18 downstream neighbours (customers or networks it carries). Its most visible upstreams are Zayo Bandwidth (AS6461), Hurricane Electric LLC (AS6939), and Cogent Communications, LLC (AS174). AS55039 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 11:05 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 199.250.32.1, the first address of 199.250.32.0/20. 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 (66 prefixes)

PrefixAddresses
52.144.56.0/23512
64.190.16.0/221,024
64.190.16.0/24256
64.190.17.0/24256
64.190.18.0/24256
66.187.28.0/221,024
66.187.28.0/23512
66.187.30.0/24256
66.187.31.0/24256
76.164.220.0/221,024
76.164.220.0/24256
76.164.221.0/24256
76.164.222.0/24256
76.164.223.0/24256
134.82.112.0/221,024
134.82.112.0/24256
134.82.113.0/24256
134.82.114.0/24256
134.82.116.0/221,024
136.242.88.0/212,048
136.242.88.0/221,024
148.59.192.0/221,024
152.36.16.0/212,048
152.36.17.0/24256
152.36.24.0/23512
152.36.26.0/23512
152.36.28.0/23512
162.142.100.0/221,024
162.142.100.0/24256
162.142.101.0/24256
162.142.102.0/24256
162.142.103.0/24256
162.218.180.0/221,024
162.218.182.0/23512
162.222.252.0/221,024
167.150.4.0/221,024
167.150.4.0/24256
167.150.5.0/24256
167.150.6.0/24256
167.150.7.0/24256
168.245.212.0/221,024
198.207.188.0/24256
199.184.112.0/221,024
199.184.116.0/23512
199.231.248.0/221,024
199.231.248.0/23512
199.231.250.0/24256
199.231.251.0/24256
199.250.32.0/204,096
199.250.48.0/212,048
199.250.56.0/221,024
204.57.248.0/212,048
204.57.249.0/24256
204.57.250.0/23512
204.57.252.0/221,024
205.220.208.0/212,048
205.220.209.0/24256
205.220.210.0/24256
205.220.211.0/24256
205.220.212.0/23512
205.220.214.0/23512
208.66.120.0/221,024
209.127.236.0/221,024
209.127.236.0/23512
209.127.236.0/24256
209.127.238.0/23512

IPv6 prefixes (15 prefixes)

Prefix
2602:f59f::/40
2602:ff7c::/36
2602:ff7c:7::/48
2602:ff7c:8::/48
2602:ff7c:9::/48
2602:ff7c:1a::/48
2602:ff7c:1b::/48
2602:ff7c:1c::/48
2602:ff7c:1f::/48
2602:ff7c:2b::/48
2602:ff7c:2d::/48
2602:ff7c:31::/48
2602:ff7c:201::/48
2602:ff7c:701::/48
2602:ff7c:800::/40

Neighbours

Upstreams (transit or peers) (11)

ASNetworkVisibility
AS6461Zayo Bandwidth4,035
AS6939Hurricane Electric LLC569
AS174Cogent Communications, LLC450
AS9002RETN Limited44
AS137409GSL Networks Pty LTD29
AS35280F5 Networks SARL22
AS394256Tech Futures Interactive Inc.16
AS7575Australian Academic and Research Network (AARNet)10
AS52025ParadoxNetworks Limited10
AS1239Cogent Communications, LLC1
AS55850Mercury NZ Limited1

Downstreams (customers) (18)

ASNetworkVisibility
AS396049Ednetics, Inc.393
AS30107West Ada School District386
AS63298Fatbeam, LLC332
AS26036Kootenai Medical Center298
AS399676Kaniksu, LLC293
AS27282North Idaho College276
AS393341Spokane County272
AS63282Yakima Valley Farm Workers Clinic265
AS393384Kollective Technology, Inc.265
AS401987HEALTHCARE-ASN - Samaritan Healthcare265
AS402184-264
AS11863-176
AS16679-172
AS62990-125
AS23263-93
AS11649-65
AS55268-48
AS32203-8

6 more neighbours appear on both sides of this network depending on the path, so they are counted in neither list.

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.