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Autonomous System

AS1820 · WNET TELECOM USA Corp.

Overview

AS1820 is announced on the Internet: RIPE RIS route collectors currently see 41 IPv4 prefixes and 5 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 48,896 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 86 upstream neighbours (transit providers or peers) and 131 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), GTT Communications Inc. (AS3257), and IDDQD-AS (AS1273). AS1820 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 12:54 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 64.49.64.1, the first address of 64.49.64.0/19. 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 (41 prefixes)

PrefixAddresses
31.172.136.0/212,048
31.223.224.0/212,048
64.49.64.0/198,192
80.92.224.0/204,096
82.117.244.0/24256
85.90.211.0/24256
91.202.109.0/24256
91.202.110.0/23512
92.60.176.0/204,096
92.119.220.0/221,024
128.0.168.0/212,048
146.19.54.0/24256
185.16.228.0/221,024
185.38.208.0/23512
185.38.210.0/23512
185.39.196.0/221,024
185.45.244.0/24256
185.45.247.0/24256
185.170.192.0/221,024
185.170.192.0/24256
185.170.193.0/24256
193.16.47.0/24256
193.104.182.0/24256
193.110.100.0/23512
193.111.0.0/23512
193.111.48.0/221,024
193.239.216.0/24256
194.28.196.0/221,024
194.28.196.0/24256
194.246.120.0/23512
195.66.93.0/24256
195.177.72.0/221,024
212.110.129.0/24256
212.110.130.0/23512
212.110.136.0/221,024
212.110.140.0/23512
212.110.142.0/23512
212.110.144.0/212,048
212.110.152.0/23512
217.20.160.0/204,096
217.20.176.0/204,096

IPv6 prefixes (5 prefixes)

Prefix
2602:feb2::/36
2602:feb2::/42
2602:feb2:40::/42
2a01:6b0::/32
2a13:8800::/29

Neighbours

Upstreams (transit or peers) (86)

ASNetworkVisibility
AS1299Arelion Sweden AB3,213
AS3257GTT Communications Inc.2,255
AS1273IDDQD-AS1,605
AS6939Hurricane Electric LLC728
AS13030Init7 (Switzerland) Ltd.442
AS34549meerfarbig GmbH & Co. KG410
AS6461Zayo Bandwidth392
AS34927iFog GmbH355
AS34019Hivane Association353
AS25091IP-Max SA288
AS34177Celeste SAS256
AS49434FBW NETWORKS SAS242
AS3935131173 Services AB224
AS50304Blix Solutions AS215
AS47147Anexia Cloud Solutions GmbH213
AS9121TTNet Turk Telekomunikasyon Anonim Sirketi199
AS8298IPng Networks GmbH190
AS12779IT.Gate S.p.A.184
AS41327Fiber Telecom S.p.A.173
AS15958-169
AS24961WIIT AG166
AS37497Network Platforms (PTY) LTD156
AS5405Inter.link GmbH154
AS29075IELO-LIAZO SERVICES SAS154
AS9198JSC Kazakhtelecom151
AS35280F5 Networks SARL143
AS50629-135
AS1257Tele2 Sverige AB129
AS20764CJSC RASCOM129
AS6797GlobalConnect AB127

The 30 most visible of 86.

Downstreams (customers) (131)

ASNetworkVisibility
AS61297Ante Mediam LLC2,068
AS44894Ukrchermetavtomatika LLC768
AS48957Joint Ukrainian American Enterprise "Telecommunications Resource Center" ltd752
AS28994Sitel Ltd665
AS199995Omega Telecom LLC616
AS48683Bilink LLC596
AS44383KP "CIC" Kharkov575
AS24995MIK Telecom Ltd.536
AS41540Load.me sp. z o. o.534
AS42396PJSC Telesystems of Ukraine522
AS41987-388
AS24872-380
AS30886PP KOM i TEX369
AS42331-369
AS20516-354
AS24685-323
AS16327-319
AS60318-304
AS34224-290
AS50848-284
AS50856-277
AS20897-275
AS44723-275
AS57544-275
AS204541-275
AS61312-274
AS212542-274
AS43416-273
AS21390-272
AS57612-272

The 30 most visible of 131.

154 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.