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Autonomous System

AS50837 ยท CLOUDSIGMA AG

Overview

AS50837 is announced on the Internet: RIPE RIS route collectors currently see 43 IPv4 prefixes and 7 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 14,336 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 42 upstream neighbours (transit providers or peers) and 2 downstream neighbours (customers or networks it carries). Its most visible upstreams are Nour Internet Company for Communications and Information Technology Ltd. (AS29684), Neterra Ltd. (AS34224), and IP-Max SA (AS25091). AS50837 was assigned by RIPE NCC, and its registration country is Switzerland.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:52 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 178.22.64.1, the first address of 178.22.64.0/21. 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 (43 prefixes)

PrefixAddresses
31.171.240.0/24256
31.171.241.0/24256
31.171.242.0/24256
31.171.244.0/221,024
31.171.248.0/23512
31.171.250.0/24256
31.171.251.0/24256
31.171.252.0/24256
31.171.253.0/24256
31.171.254.0/24256
31.171.255.0/24256
87.120.132.0/24256
91.92.71.0/24256
91.92.176.0/23512
91.92.176.0/24256
91.92.177.0/24256
94.156.66.0/24256
94.156.200.0/24256
94.156.201.0/24256
94.156.202.0/23512
94.156.227.0/24256
104.36.16.0/24256
104.36.17.0/24256
104.36.18.0/24256
104.36.19.0/24256
104.244.32.0/24256
109.224.243.0/24256
162.213.36.0/24256
162.213.37.0/24256
162.213.38.0/24256
162.213.39.0/24256
178.22.64.0/212,048
185.12.4.0/24256
185.12.5.0/24256
185.12.6.0/24256
185.113.222.0/24256
185.230.208.0/221,024
185.230.208.0/23512
185.230.210.0/23512
212.87.206.0/24256
212.147.208.0/221,024
212.147.208.0/24256
212.147.209.0/24256

IPv6 prefixes (7 prefixes)

Prefix
2a01:9980:2::/48
2a01:9980:a::/48
2a01:9980:b::/48
2a01:9980:c::/48
2a01:9980:d::/48
2a01:9980:10::/48
2a01:9980:11::/48

Neighbours

Upstreams (transit or peers) (42)

ASNetworkVisibility
AS29684Nour Internet Company for Communications and Information Technology Ltd.967
AS34224Neterra Ltd.488
AS25091IP-Max SA446
AS174Cogent Communications, LLC282
AS15612ServeCentric Ltd.269
AS30815Detecon Al Saudia Co. Ltd.259
AS50629LWLcom GmbH228
AS8220COLT Technology Services Group Limited223
AS6461Zayo Bandwidth205
AS204281NETX - NG LTD102
AS13237euNetworks GmbH75
AS6939Hurricane Electric LLC67
AS34019Hivane Association7
AS34177Celeste SAS4
AS3935131173 Services AB4
AS48362Stadtwerke Feldkirch4
AS559-3
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH3
AS4230CLARO S.A.3
AS5405Inter.link GmbH3
AS1836green.ch AG2
AS7195EDGEUNO S.A.S2
AS9002RETN Limited2
AS14840BR.Digital Telecom2
AS20485-2
AS20764CJSC RASCOM2
AS35280F5 Networks SARL2
AS37100SEACOM Limited2
AS37468Angola Cables2
AS4455IX Reach Ltd1

The 30 most visible of 42.

Downstreams (customers) (2)

ASNetworkVisibility
AS64462Stephan Roland Wolf269
AS25091IP-Max SA13

65 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.