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Autonomous System

AS20119 ยท Arrow Group Inc.

Overview

AS20119 is announced on the Internet: RIPE RIS route collectors currently see 15 IPv4 prefixes and 4 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 4,608 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 9 upstream neighbours (transit providers or peers) and 32 downstream neighbours (customers or networks it carries). Its most visible upstreams are Zayo Bandwidth (AS6461), Cogent Communications, LLC (AS174), and Hurricane Electric LLC (AS6939). AS20119 was assigned by ARIN, and its registration country is Canada.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 8:58 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 204.10.116.1, the first address of 204.10.116.0/22. 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 (15 prefixes)

PrefixAddresses
23.136.80.0/24256
23.151.96.0/24256
23.170.96.0/24256
144.208.88.0/24256
158.51.50.0/24256
158.51.51.0/24256
172.83.127.0/24256
202.5.128.0/24256
202.5.129.0/24256
204.10.116.0/221,024
204.19.138.0/24256
204.209.128.0/24256
204.209.166.0/24256
206.123.26.0/24256
206.123.27.0/24256

IPv6 prefixes (4 prefixes)

Prefix
2602:fd7f::/36
2602:fdd1::/36
2602:fe0f::/36
2602:fe3a:2::/48

Neighbours

Upstreams (transit or peers) (9)

ASNetworkVisibility
AS6461Zayo Bandwidth3,536
AS174Cogent Communications, LLC2,261
AS6939Hurricane Electric LLC1,391
AS394256Tech Futures Interactive Inc.112
AS137409GSL Networks Pty LTD39
AS9002RETN Limited38
AS7575Australian Academic and Research Network (AARNet)25
AS52025ParadoxNetworks Limited18
AS20326TeraSwitch Networks Inc.2

Downstreams (customers) (32)

ASNetworkVisibility
AS18897Montana Sky Networks, Inc.770
AS26968PSD Professional Systems/Designs, Ltd436
AS399327Connect418
AS1011Accutar Biotechnology (Canada) Inc.409
AS26692Glacier Holdings Ltd.323
AS397864Harvest Vintage Imports Ltd.258
AS399219AIRFIBER INTERNET LTD.258
AS55016Imperium Inc.243
AS53356RANGE CLOUD - Free Range Cloud Hosting Inc.242
AS395097PACHEZ HOLDINGS LTD.238
AS215527-231
AS18850-230
AS25988-230
AS29768-230
AS395297-230
AS398358-230
AS400465-230
AS27404-229
AS30079-229
AS19662-228
AS54987-227
AS394256Tech Futures Interactive Inc.185
AS63072-167
AS401315-130
AS30648-112
AS6461Zayo Bandwidth102
AS396515-87
AS36382-52
AS22512-13
AS396125-13

The 30 most visible of 32.

7 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.