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Autonomous System

AS25369 · Hydra Communications Ltd

Overview

AS25369 is announced on the Internet: RIPE RIS route collectors currently see 267 IPv4 prefixes and 18 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 135,424 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 107 upstream neighbours (transit providers or peers) and 39 downstream neighbours (customers or networks it carries). Its most visible upstreams are GTT Communications Inc. (AS3257), Arelion Sweden AB (AS1299), and Cogent Communications, LLC (AS174). AS25369 was assigned by RIPE NCC, and its registration country is United Kingdom.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:04 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 81.19.208.1, the first address of 81.19.208.0/20. 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 (267 prefixes)

PrefixAddresses
2.27.159.0/24256
2.57.17.0/24256
5.226.136.0/212,048
5.252.83.0/24256
31.14.254.0/24256
31.57.132.0/24256
31.57.238.0/24256
31.58.39.0/24256
37.10.113.0/24256
37.10.114.0/24256
37.252.25.0/24256
45.66.94.0/23512
45.133.173.0/24256
45.149.164.0/24256
45.156.205.0/24256
45.156.206.0/24256
46.37.110.0/24256
46.102.155.0/24256
46.231.160.0/212,048
46.247.142.0/23512
46.247.143.0/24256
51.146.69.0/24256
51.194.168.0/221,024
51.194.176.0/221,024
51.194.184.0/221,024
62.84.168.0/24256
62.84.170.0/24256
64.93.48.0/221,024
64.93.60.0/221,024
64.205.72.0/24256
64.239.236.0/221,024
65.86.176.0/221,024
65.86.184.0/221,024
69.5.168.0/212,048
69.5.169.0/24256
72.9.168.0/221,024
77.67.26.0/24256
77.81.102.0/24256
77.81.124.0/221,024
77.81.191.0/24256
77.105.50.0/24256
78.105.159.0/24256
78.105.171.0/24256
78.105.190.0/24256
78.105.205.0/24256
78.105.213.0/24256
78.143.224.0/212,048
79.139.84.0/221,024
80.224.232.0/221,024
80.240.108.0/23512
81.19.208.0/204,096
81.19.208.0/23512
81.19.216.0/24256
81.168.20.0/24256
81.168.104.0/24256
81.168.112.0/24256
81.168.120.0/24256
82.38.3.0/24256
82.38.130.0/24256
82.38.199.0/24256
82.39.141.0/24256
82.39.189.0/24256
82.39.209.0/24256
82.40.24.0/24256
82.40.28.0/24256
82.47.244.0/24256
82.97.192.0/23512
82.152.3.0/24256
82.152.59.0/24256
82.152.218.0/24256
82.152.233.0/24256
82.153.72.0/24256
82.153.182.0/24256
82.153.187.0/24256
82.153.213.0/24256
82.153.232.0/24256
82.163.5.0/24256
84.247.0.0/24256
84.247.40.0/23512
84.247.42.0/23512
85.120.12.0/23512
85.204.70.0/24256
85.209.177.0/24256
85.232.187.0/24256
86.38.187.0/24256
86.54.136.0/221,024
86.104.20.0/23512
86.104.22.0/23512
86.104.248.0/221,024
86.104.248.0/24256
86.104.249.0/24256
86.106.89.0/24256
86.106.112.0/24256
86.106.135.0/24256
86.106.157.0/24256
86.106.158.0/24256
86.107.241.0/24256
86.109.74.0/24256
87.76.144.0/24256
87.76.173.0/24256

Showing the first 100 of 267, in address order. Complete list on RIPEstat

IPv6 prefixes (18 prefixes)

Prefix
2a00:10e8:101::/48
2a00:1a30::/32
2a01:4020::/32
2a01:4020:2::/48
2a01:4020:3::/48
2a01:4020:30::/48
2a01:4020:31::/48
2a01:4020:32::/48
2a01:4020:33::/48
2a01:4020:34::/48
2a01:4020:100::/40
2a01:4020:200::/40
2a09:a702:6::/48
2a09:a702:7::/48
2a09:a702:8::/48
2a09:a702:9::/48
2a0b:b840::/29
2a0f:2c80:1::/48

Neighbours

Upstreams (transit or peers) (107)

ASNetworkVisibility
AS3257GTT Communications Inc.2,170
AS1299Arelion Sweden AB2,087
AS174Cogent Communications, LLC1,679
AS6939Hurricane Electric LLC885
AS13030Init7 (Switzerland) Ltd.203
AS25091IP-Max SA200
AS33891Core-Backbone GmbH175
AS60068Datacamp Limited140
AS34549meerfarbig GmbH & Co. KG112
AS9002RETN Limited99
AS34927iFog GmbH77
AS5405Inter.link GmbH71
AS34177Celeste SAS67
AS35280F5 Networks SARL66
AS3935131173 Services AB62
AS21320GEANT Vereniging59
AS8218Zayo Infrastructure France SA55
AS37497Network Platforms (PTY) LTD55
AS50304Blix Solutions AS55
AS3214xTom GmbH54
AS41327Fiber Telecom S.p.A.53
AS48362Stadtwerke Feldkirch53
AS12779IT.Gate S.p.A.52
AS8455atom86 BV43
AS29075IELO-LIAZO SERVICES SAS41
AS8220COLT Technology Services Group Limited39
AS7195EDGEUNO S.A.S38
AS3216PJSC "Vimpelcom"36
AS8298IPng Networks GmbH36
AS34019Hivane Association36

The 30 most visible of 107.

Downstreams (customers) (39)

ASNetworkVisibility
AS41378KirinoNET Kirino LLC932
AS149440Evoxt Sdn. Bhd.754
AS34927iFog GmbH616
AS394381L7 Connect434
AS36829Winstri Corporation416
AS199856Ping Technology Labs LTD412
AS211344RTM Networks B.V.411
AS209854Cyberzonehub Cyberzone S.A.409
AS198983TornadoDatacenter Joseph Hofmann trading as 'Tornado Datacenter GmbH & Co. KG'405
AS215035CONNECT-IX SAS404
AS218810-385
AS152586-359
AS7361-323
AS9086-295
AS215595-270
AS48336-267
AS200636-267
AS8577-265
AS10112-263
AS57994-263
AS136787PacketHub S.A.262
AS272096-258
AS200514-252
AS218515-228
AS203391Cloud DNS Ltd191
AS50763-143
AS58144-135
AS54309-102
AS212653-99
AS12775-88

The 30 most visible of 39.

111 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.