Skip to content

Autonomous System

AS61423 ยท JMP Technology Services GmbH

Overview

AS61423 is announced on the Internet: RIPE RIS route collectors currently see 8 IPv4 prefixes and 12 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 2,304 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 44 upstream neighbours (transit providers or peers) and 11 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), Level 3 Parent, LLC (AS3356), and COLT Technology Services Group Limited (AS8220). AS61423 was assigned by RIPE NCC, and its registration country is Switzerland.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:57 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 194.124.146.1, the first address of 194.124.146.0/23. 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 (8 prefixes)

PrefixAddresses
185.161.120.0/24256
185.202.132.0/24256
193.109.52.0/24256
193.109.53.0/24256
193.200.196.0/24256
194.124.145.0/24256
194.124.146.0/23512
212.32.65.0/24256

IPv6 prefixes (12 prefixes)

Prefix
2a0a:d6c0:5::/48
2a0a:d6c0:6::/48
2a0a:d6c0:7::/48
2a0a:d6c0:10::/48
2a0a:d6c0:11::/48
2a0a:d6c0:208::/45
2a0a:d6c0:efef::/48
2a0a:d6c0:eff0::/48
2a0a:d6c0:eff1::/48
2a0a:d6c0:eff2::/48
2a0a:d6c0:eff3::/48
2a0a:d6c0:efff::/48

Neighbours

Upstreams (transit or peers) (44)

ASNetworkVisibility
AS1299Arelion Sweden AB785
AS3356Level 3 Parent, LLC763
AS8220COLT Technology Services Group Limited559
AS6939Hurricane Electric LLC484
AS9002RETN Limited65
AS34019Hivane Association36
AS34549meerfarbig GmbH & Co. KG29
AS35280F5 Networks SARL24
AS48362Stadtwerke Feldkirch20
AS5405Inter.link GmbH19
AS24961WIIT AG18
AS3935131173 Services AB18
AS13030Init7 (Switzerland) Ltd.17
AS14840BR.Digital Telecom16
AS8298IPng Networks GmbH15
AS8218Zayo Infrastructure France SA14
AS34177Celeste SAS14
AS47147Anexia Cloud Solutions GmbH14
AS12859BIT BV12
AS25091IP-Max SA12
AS41327Fiber Telecom S.p.A.12
AS1836green.ch AG9
AS6204INTERKVM HOST SRL9
AS6797GlobalConnect AB9
AS29075IELO-LIAZO SERVICES SAS9
AS29222Infomaniak Network SA9
AS4601Antonios A. Chariton8
AS15958CETIN Ltd. Belgrade8
AS29208-6
AS31500Global Network Management Inc6

The 30 most visible of 44.

Downstreams (customers) (11)

ASNetworkVisibility
AS211447Vitra IT Services GmbH362
AS212014Nugolo AG342
AS208650Sonio AG339
AS213044Stiftung Auffangeinrichtung BVG339
AS212981Schiller AG290
AS207171Acredia Versicherung AG266
AS203564IBKR Financial Services AG249
AS210596Konrad-Adenauer-Stiftung e.V.235
AS214815Amforc AG110
AS203104IBKR Financial Services AG48
AS201552-38

62 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.