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Autonomous System

AS202984 · Chernyshov Aleksandr Aleksandrovich

Overview

AS202984 is announced on the Internet: RIPE RIS route collectors currently see 11 IPv4 prefixes and 9 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 2,816 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 38 upstream neighbours (transit providers or peers) and 69 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), CJSC RASCOM (AS20764), and Cogent Communications, LLC (AS174). AS202984 was assigned by RIPE NCC, and its registration country is Russia.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 1:28 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 45.139.236.1, the first address of 45.139.236.0/24. 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 (11 prefixes)

PrefixAddresses
45.139.236.0/24256
45.139.237.0/24256
45.139.239.0/24256
46.8.141.0/24256
92.63.199.0/24256
92.63.203.0/24256
185.176.25.0/24256
185.211.244.0/24256
185.211.245.0/24256
185.211.246.0/24256
185.211.247.0/24256

IPv6 prefixes (9 prefixes)

Prefix
2a0b:6cc0::/29
2a0b:6cc1:7::/48
2a0b:6cc5::/48
2a0e:c140:1::/48
2a0e:c140:2::/48
2a0e:c140:3::/48
2a0e:c140:4::/48
2a0e:c140:5::/48
2a0e:c146::/48

Neighbours

Upstreams (transit or peers) (38)

ASNetworkVisibility
AS1299Arelion Sweden AB5,836
AS20764CJSC RASCOM5,575
AS174Cogent Communications, LLC4,727
AS12389PJSC Rostelecom3,649
AS6762TELECOM ITALIA SPARKLE S.p.A.2,233
AS31133PJSC MegaFon1,256
AS3216PJSC "Vimpelcom"876
AS6939Hurricane Electric LLC776
AS31500Global Network Management Inc391
AS25091IP-Max SA346
AS59692IQWeb FZ-LLC245
AS28917Fiord Networks, UAB203
AS61049Exascale Ltd124
AS41327Fiber Telecom S.p.A.119
AS49434FBW NETWORKS SAS103
AS47692Nessus GmbH81
AS8218Zayo Infrastructure France SA79
AS43727-73
AS33891Core-Backbone GmbH63
AS3935131173 Services AB63
AS197453Biz Telecom LLC63
AS50673Serverius Holding B.V.47
AS9198JSC Kazakhtelecom45
AS42295TBISS Ltd44
AS15958CETIN Ltd. Belgrade40
AS62000SERVERD SAS38
AS6204INTERKVM HOST SRL36
AS60171AFR-IX TELECOM S.A.36
AS34927iFog GmbH33
AS56911Warian S.R.L.32

The 30 most visible of 38.

Downstreams (customers) (69)

ASNetworkVisibility
AS213220Delta Ltd4,541
AS25227JSC "ER-Telecom Holding"3,855
AS6762TELECOM ITALIA SPARKLE S.p.A.3,649
AS33993UFO Hosting LLC2,949
AS35598INETCOM CARRIER LLC2,122
AS8985Join-stock company "Internet Exchange"MSK-IX"962
AS198610Beget LLC789
AS16262Datacheap LLC765
AS35196FIRST SERVER LIMITED765
AS201664netwarm NetWarm LTD721
AS12389PJSC Rostelecom700
AS39561-665
AS212872-609
AS61400-545
AS206230-544
AS44094-527
AS43727-523
AS50113SuperServersDatacenter FIRST SERVER LIMITED474
AS215895-427
AS35539-389
AS204490Kontel LLC381
AS215182-369
AS51685-346
AS50214-316
AS56864-305
AS59793-280
AS197695"Domain names registrar REG.RU", Ltd277
AS29319Informational-measuring systems Ltd.272
AS205125IP MARKET - FZCO258
AS43048-257

The 30 most visible of 69.

15 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.