Skip to content

Autonomous System

AS205103 · Telegraph42 Management GmbH

Overview

AS205103 is announced on the Internet: RIPE RIS route collectors currently see 1 IPv4 prefix and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 1,024 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 60 upstream neighbours (transit providers or peers) and 663 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), Zayo Bandwidth (AS6461), and NTT America, Inc. (AS2914). AS205103 was assigned by RIPE NCC, and its registration country is Germany.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 12:56 AM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 185.230.68.1

The trace goes to 185.230.68.1, the first address of 185.230.68.0/22. 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 (1 prefix)

PrefixAddresses
185.230.68.0/221,024

IPv6 prefixes (1 prefix)

Prefix
2a0c:500::/30

Neighbours

Upstreams (transit or peers) (60)

ASNetworkVisibility
AS6939Hurricane Electric LLC14,260
AS6461Zayo Bandwidth3,275
AS2914NTT America, Inc.1,231
AS20764CJSC RASCOM821
AS35320Eurotranstelecom Ltd549
AS34549meerfarbig GmbH & Co. KG411
AS8298IPng Networks GmbH275
AS34177Celeste SAS229
AS14840BR.Digital Telecom188
AS29075IELO-LIAZO SERVICES SAS186
AS34927iFog GmbH164
AS29691-144
AS12779IT.Gate S.p.A.126
AS34019Hivane Association122
AS24961WIIT AG111
AS47147Anexia Cloud Solutions GmbH109
AS61010IPNET OOO108
AS8758Iway AG105
AS37468Angola Cables95
AS5405Inter.link GmbH92
AS3935131173 Services AB82
AS212024-77
AS35280F5 Networks SARL71
AS35625Eurofiber France SAS71
AS209090-66
AS25091IP-Max SA65
AS6797GlobalConnect AB53
AS50673-39
AS6696VERIXI SA37
AS51346-37

The 30 most visible of 60.

Downstreams (customers) (663)

ASNetworkVisibility
AS28910"Uzbektelekom" Joint Stock Company23,592
AS6939Hurricane Electric LLC3,858
AS35168TNS-Plus LLP2,314
AS208592LLC "NET SOLUTIONS"1,024
AS202746Europeer Ltd.824
AS51346Opened Joint Stock Company "Tojiktelecom"653
AS48887CJSC INDIGO TAJIKISTAN303
AS6461Zayo Bandwidth195
AS29535Orange Polska Spolka Akcyjna120
AS20473The Constant Company, LLC112
AS12912T-Mobile Polska S.A.108
AS34927iFog GmbH106
AS18403-103
AS7049Silica Networks Argentina S.A.72
AS13237-68
AS38193Transworld Associates (Pvt.) Ltd.68
AS24940Hetzner Online GmbH63
AS270158-60
AS50107-58
AS35320Eurotranstelecom Ltd54
AS7713PT Telekomunikasi Indonesia49
AS9318SK Broadband Co Ltd49
AS4229-37
AS8283Netwerkvereniging Coloclue31
AS1136KPN B.V.23
AS14840BR.Digital Telecom22
AS20764CJSC RASCOM21
AS174Cogent Communications, LLC20
AS62255BiMajLink d.o.o.20
AS2914NTT America, Inc.19

The 30 most visible of 663.

70 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.