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Autonomous System

AS9049 · JSC "ER-Telecom Holding"

Overview

AS9049 is announced on the Internet: RIPE RIS route collectors currently see 38 IPv4 prefixes and 3 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 13,056 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 39 upstream neighbours (transit providers or peers) and 392 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), JSC "RetnNet" (AS57304), and RETN Limited (AS9002). AS9049 was assigned by RIPE NCC, and its registration country is Russia.

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 188.234.128.1, the first address of 188.234.128.0/20. 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 (38 prefixes)

PrefixAddresses
5.3.85.0/24256
31.131.196.0/23512
31.131.198.0/23512
37.230.237.0/24256
83.172.48.0/212,048
88.204.106.0/24256
188.234.72.0/212,048
188.234.72.0/24256
188.234.128.0/204,096
188.234.128.0/212,048
188.234.128.0/221,024
188.234.128.0/24256
188.234.129.0/24256
188.234.130.0/24256
188.234.131.0/24256
188.234.132.0/221,024
188.234.135.0/24256
188.234.136.0/212,048
188.234.136.0/221,024
188.234.140.0/221,024
188.234.144.0/221,024
188.234.144.0/23512
188.234.144.0/24256
188.234.145.0/24256
188.234.146.0/23512
188.234.146.0/24256
188.234.147.0/24256
188.234.152.0/212,048
188.234.152.0/221,024
188.234.152.0/24256
188.234.153.0/24256
188.234.154.0/24256
188.234.155.0/24256
188.234.156.0/221,024
188.234.156.0/24256
188.234.157.0/24256
188.234.158.0/24256
188.234.159.0/24256

IPv6 prefixes (3 prefixes)

Prefix
2a02:2698:a100::/40
2a02:2698:a200::/40
2a03:1ac0::/32

Neighbours

Upstreams (transit or peers) (39)

ASNetworkVisibility
AS1299Arelion Sweden AB29,821
AS57304JSC "RetnNet"21,851
AS9002RETN Limited21,321
AS12389PJSC Rostelecom7,464
AS6762TELECOM ITALIA SPARKLE S.p.A.5,558
AS6939Hurricane Electric LLC2,004
AS25091IP-Max SA1,541
AS20485Joint Stock Company TransTeleCom1,023
AS139057Edgenext Legend Dynasty Pte. Ltd.582
AS49434FBW NETWORKS SAS502
AS41327Fiber Telecom S.p.A.487
AS8218Zayo Infrastructure France SA434
AS47692Nessus GmbH381
AS20764CJSC RASCOM368
AS15958CETIN Ltd. Belgrade352
AS50673Serverius Holding B.V.327
AS33891Core-Backbone GmbH306
AS6663Euroweb Romania S.R.L.305
AS200612GulfBridgeInternational Gulf Bridge International Inc.302
AS3935131173 Services AB301
AS42295-286
AS9198-282
AS50629LWLcom GmbH176
AS13178-166
AS61031ESCOMTEL BACKGROUND COMMUNICATION NETWORKS Ltd.166
AS56655Gigahost AS164
AS60171AFR-IX TELECOM S.A.157
AS62000SERVERD SAS133
AS6204INTERKVM HOST SRL106
AS56911Warian S.R.L.54

The 30 most visible of 39.

Downstreams (customers) (392)

ASNetworkVisibility
AS25227JSC "ER-Telecom Holding"3,696
AS48858JSC "ER-Telecom Holding"2,202
AS25549JSC "ER-Telecom Holding"1,986
AS31200Novotelecom Ltd1,819
AS51034JSC "ER-Telecom Holding"1,667
AS31483JSC "ER-Telecom Holding"1,498
AS51645JSC "ER-Telecom Holding"1,267
AS61031ESCOMTEL BACKGROUND COMMUNICATION NETWORKS Ltd.1,257
AS42682JSC "ER-Telecom Holding"1,225
AS206873GalaxyData GalaxyStar LLC1,196
AS12772-1,191
AS51570-1,008
AS50543-941
AS211366-939
AS41786-913
AS41843-873
AS12768-860
AS34533-831
AS51604-823
AS59713-803
AS31363-798
AS41682-764
AS8732JSC Comcor758
AS57045Panin Kirill Evgenyevich751
AS41661-746
AS56981-729
AS50498-701
AS56330-697
AS56420-689
AS34959-684

The 30 most visible of 392.

13 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.