Skip to content

Autonomous System

AS205112 · PHILUNET GmbH

Overview

AS205112 is announced on the Internet: RIPE RIS route collectors currently see 12 IPv4 prefixes and 7 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 3,328 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 55 upstream neighbours (transit providers or peers) and 29 downstream neighbours (customers or networks it carries). Its most visible upstreams are LWLcom GmbH (AS50629), Init7 (Switzerland) Ltd. (AS13030), and Angola Cables (AS37468). AS205112 was assigned by RIPE NCC, and its registration country is Germany.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:06 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 45.157.240.1, the first address of 45.157.240.0/22. 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 (12 prefixes)

PrefixAddresses
45.151.167.0/24256
45.157.240.0/221,024
45.157.241.0/24256
45.157.242.0/24256
185.65.240.0/24256
185.65.242.0/24256
185.117.214.0/24256
185.138.54.0/24256
185.232.100.0/221,024
185.232.100.0/24256
185.232.102.0/24256
185.232.103.0/24256

IPv6 prefixes (7 prefixes)

Prefix
2a06:8784::/32
2a07:a40:c::/48
2a0c:1700::/29
2a0c:1700:3::/48
2a0f:6480::/29
2a0f:6480::/32
2a0f:6481::/32

Neighbours

Upstreams (transit or peers) (55)

ASNetworkVisibility
AS50629LWLcom GmbH75,339
AS13030Init7 (Switzerland) Ltd.16,117
AS37468Angola Cables2,050
AS14840BR.Digital Telecom1,490
AS137409GSL Networks Pty LTD1,464
AS4230CLARO S.A.1,134
AS20485Joint Stock Company TransTeleCom1,025
AS7713PT Telekomunikasi Indonesia694
AS20764CJSC RASCOM586
AS5405Inter.link GmbH580
AS6797GlobalConnect AB536
AS37100SEACOM Limited523
AS34927iFog GmbH370
AS60171AFR-IX TELECOM S.A.271
AS35280F5 Networks SARL268
AS6939Hurricane Electric LLC241
AS6204INTERKVM HOST SRL217
AS24482SG.GS216
AS8218Zayo Infrastructure France SA214
AS263444Open X Tecnologia Ltda209
AS4657StarHub Ltd198
AS1764-191
AS6663Euroweb Romania S.R.L.177
AS50673Serverius Holding B.V.162
AS25091IP-Max SA133
AS29075IELO-LIAZO SERVICES SAS117
AS29208Quantcom, a.s.106
AS62000SERVERD SAS101
AS35625Eurofiber France SAS83
AS42708Glesys AB82

The 30 most visible of 55.

Downstreams (customers) (29)

ASNetworkVisibility
AS15987Portunity GmbH691
AS210780Stadt Wuppertal466
AS57154Stadtwerke Konstanz GmbH349
AS60123Stadtverwaltung Remscheid277
AS48821Mauve Mailorder Software Verwaltung GmbH256
AS13030Init7 (Switzerland) Ltd.204
AS202739Daniel Czerwonk150
AS207160Factory Campus Verwaltungs-GmbH61
AS206356Freifunk Essen e.V.46
AS212567Freie Netze Muenchen e.V.25
AS49666Telecommunication Infrastructure Company6
AS1101-1
AS5405Inter.link GmbH1
AS6849JSC "Ukrtelecom"1
AS12355-1
AS13335Cloudflare, Inc.1
AS15958CETIN Ltd. Belgrade1
AS24812-1
AS31272-1
AS34772NEOTEL AD Skopje1
AS49933-1
AS50272-1
AS50629LWLcom GmbH1
AS56347-1
AS60171AFR-IX TELECOM S.A.1
AS137409GSL Networks Pty LTD1
AS196925Azertelecom LLC1
AS211498-1
AS213092-1

1,727 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.