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Autonomous System

AS5606 · GTS Telecom SRL

Overview

AS5606 is announced on the Internet: RIPE RIS route collectors currently see 131 IPv4 prefixes and 5 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 92,416 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 84 upstream neighbours (transit providers or peers) and 79 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), Level 3 Parent, LLC (AS3356), and GTT Communications Inc. (AS3257). AS5606 was assigned by RIPE NCC, and its registration country is Romania.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 12:57 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 85.9.0.1, the first address of 85.9.0.0/18. 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 (131 prefixes)

PrefixAddresses
5.35.208.0/212,048
31.14.21.0/24256
37.156.182.0/23512
45.14.236.0/24256
45.14.238.0/24256
45.14.239.0/24256
45.67.36.0/24256
45.67.38.0/24256
45.67.39.0/24256
45.82.28.0/23512
46.102.144.0/221,024
77.81.2.0/24256
80.97.48.0/24256
80.97.126.0/23512
81.180.144.0/24256
81.180.145.0/24256
81.180.250.0/23512
81.181.252.0/24256
81.181.253.0/24256
81.181.254.0/24256
81.181.255.0/24256
84.247.23.0/24256
84.247.28.0/24256
85.9.0.0/1816,384
85.9.19.0/24256
85.9.26.0/24256
85.9.35.0/24256
85.9.45.0/24256
85.9.47.0/24256
85.120.16.0/24256
85.120.17.0/24256
85.120.18.0/24256
85.120.19.0/24256
85.120.28.0/23512
85.120.33.0/24256
85.120.61.0/24256
85.122.182.0/23512
85.204.75.0/24256
85.204.108.0/24256
86.104.3.0/24256
86.104.17.0/24256
87.237.104.0/221,024
87.237.110.0/23512
89.33.236.0/23512
89.34.101.0/24256
89.37.143.0/24256
89.38.57.0/24256
89.38.59.0/24256
89.38.231.0/24256
89.38.241.0/24256
89.39.7.0/24256
89.39.68.0/24256
89.40.16.0/24256
89.40.17.0/24256
89.40.18.0/24256
89.40.19.0/24256
89.40.132.0/24256
89.41.31.0/24256
89.44.121.0/24256
89.44.200.0/24256
89.45.168.0/212,048
89.46.6.0/24256
91.194.235.0/24256
91.199.216.0/24256
91.212.231.0/24256
91.212.240.0/24256
91.212.246.0/24256
91.212.255.0/24256
92.114.2.0/24256
92.114.3.0/24256
93.113.30.0/24256
93.113.58.0/24256
93.113.59.0/24256
93.115.112.0/212,048
93.119.152.0/24256
93.119.153.0/24256
93.174.160.0/24256
93.174.162.0/24256
93.174.167.0/24256
109.205.88.0/24256
109.205.89.0/24256
109.205.90.0/24256
109.205.95.0/24256
128.140.224.0/212,048
176.223.110.0/24256
176.223.114.0/24256
185.8.152.0/221,024
185.131.222.0/24256
185.171.186.0/24256
185.181.240.0/24256
185.181.241.0/24256
185.181.242.0/24256
185.181.243.0/24256
185.220.184.0/24256
185.220.185.0/24256
185.220.186.0/24256
188.208.101.0/24256
188.211.236.0/24256
188.211.237.0/24256
188.212.37.0/24256

Showing the first 100 of 131, in address order. Complete list on RIPEstat

IPv6 prefixes (5 prefixes)

Prefix
2001:4d80::/32
2001:4d80:7357::/48
2a00:ece1::/48
2a07:4ec0::/29
2a0c:7480::/32

Neighbours

Upstreams (transit or peers) (84)

ASNetworkVisibility
AS1299Arelion Sweden AB2,334
AS3356Level 3 Parent, LLC1,631
AS3257GTT Communications Inc.1,392
AS9002RETN Limited1,273
AS174Cogent Communications, LLC1,034
AS6762TELECOM ITALIA SPARKLE S.p.A.911
AS8708DIGI ROMANIA S.A.871
AS6939Hurricane Electric LLC725
AS12302Vodafone Romania S.A.318
AS13030Init7 (Switzerland) Ltd.274
AS34549meerfarbig GmbH & Co. KG246
AS6777Amsterdam Internet Exchange B.V.235
AS25091IP-Max SA224
AS35625Eurofiber France SAS205
AS5405Inter.link GmbH197
AS34927iFog GmbH182
AS3935131173 Services AB170
AS29691-165
AS34177-165
AS34019Hivane Association163
AS12779IT.Gate S.p.A.157
AS48362Stadtwerke Feldkirch156
AS41327Fiber Telecom S.p.A.149
AS24961WIIT AG145
AS37497Network Platforms (PTY) LTD144
AS14840BR.Digital Telecom143
AS20764CJSC RASCOM135
AS20485Joint Stock Company TransTeleCom134
AS61049Exascale Ltd131
AS8298-122

The 30 most visible of 84.

Downstreams (customers) (79)

ASNetworkVisibility
AS34358Cyber_Folks SRL789
AS50084S.A."Rapid Link" S.R.L.746
AS58247SC NETVEILLANCE SRL685
AS44418Bitdefender SRL622
AS19197Stefanini, Inc.558
AS61050Innova Engineering SRL526
AS49074SC TECHNOLOGICAL SRL523
AS39312Luxoft Professional Romania S.R.L.515
AS21433AccentureFSSC Accenture UK Limited436
AS44043Cyber_Folks SRL425
AS43927-418
AS212221INTERNET BROKER SRL415
AS201387-332
AS41486-331
AS209537-293
AS9064-287
AS62315-278
AS42294-277
AS44830-277
AS47424-277
AS203053-277
AS20877-276
AS35725-276
AS49256-276
AS50080-276
AS50659-276
AS51322-276
AS56502-276
AS56585-276
AS57646-276

The 30 most visible of 79.

145 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.