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Autonomous System

AS51202 ยท NUXOA GmbH

Overview

AS51202 is announced on the Internet: RIPE RIS route collectors currently see 22 IPv4 prefixes and 19 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 5,632 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 42 upstream neighbours (transit providers or peers) and 12 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), Core-Backbone GmbH (AS33891), and Broadband Hosting B.V. (AS20562). AS51202 was assigned by RIPE NCC, and its registration country is Germany.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:53 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 31.22.72.1, the first address of 31.22.72.0/24. 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 (22 prefixes)

PrefixAddresses
31.22.72.0/24256
31.22.75.0/24256
31.25.11.0/24256
62.169.152.0/24256
84.252.120.0/24256
84.252.121.0/24256
84.252.122.0/24256
84.252.123.0/24256
89.36.32.0/24256
89.36.35.0/24256
95.175.150.0/24256
109.175.211.0/24256
185.121.132.0/24256
185.121.133.0/24256
185.144.70.0/24256
185.144.71.0/24256
185.230.161.0/24256
185.230.162.0/24256
185.230.163.0/24256
185.236.11.0/24256
192.40.69.0/24256
212.232.18.0/24256

IPv6 prefixes (19 prefixes)

Prefix
2a0c:2500::/32
2a0c:2500:1::/48
2a0c:2500:571::/48
2a0c:2500:572::/48
2a0c:2500:bbd::/48
2a0c:2501::/48
2a0c:2501:1::/48
2a0c:2502::/48
2a0c:2502:1::/48
2a0c:2503::/32
2a14:6781::/32
2a14:6781:201::/48
2a14:6781:300::/48
2a14:6781:301::/48
2a14:6781:302::/48
2a14:6781:303::/48
2a14:6781:304::/48
2a14:6781:305::/48
2a14:6781:333::/48

Neighbours

Upstreams (transit or peers) (42)

ASNetworkVisibility
AS6939Hurricane Electric LLC1,910
AS33891Core-Backbone GmbH1,753
AS20562Broadband Hosting B.V.1,492
AS50629LWLcom GmbH783
AS50263A-Systems Sp. z o.o.749
AS208208Marco Lingl trading as Cyberse GmbH & Co. KG443
AS58212dataforest GmbH418
AS5405Inter.link GmbH412
AS24785Broadband Hosting B.V.199
AS215828Tizian Maxime Weigt trading as "TMW Global Networks"115
AS24482SG.GS100
AS34549meerfarbig GmbH & Co. KG48
AS8218Zayo Infrastructure France SA43
AS48646SDRmedia Verwaltungs GmbH35
AS25091IP-Max SA32
AS8298IPng Networks GmbH28
AS34927iFog GmbH28
AS42708Glesys AB28
AS30886PP KOM i TEX27
AS37468Angola Cables27
AS3935131173 Services AB24
AS20485Joint Stock Company TransTeleCom23
AS14840BR.Digital Telecom22
AS34019Hivane Association22
AS37100SEACOM Limited20
AS49559-20
AS20764CJSC RASCOM18
AS209022Tschajera Limited17
AS401753BIXCE Inc16
AS7713PT Telekomunikasi Indonesia13

The 30 most visible of 42.

Downstreams (customers) (12)

ASNetworkVisibility
AS215828Tizian Maxime Weigt trading as "TMW Global Networks"3,371
AS202168omsag Online Marketing Solutions AG818
AS201279Loginov Vladislav795
AS215030AspireHosting Budankailu Namrata Patra trading as AspireHosting658
AS208208Marco Lingl trading as Cyberse GmbH & Co. KG557
AS203029Alec Putzmann507
AS207695dataflair Mario Kurz trading as LUME Solutions485
AS203442Steffen Barthel449
AS41457sourceWAY sourceWAY GmbH418
AS198160NUXOA GmbH287
AS212173-256
AS204762-126

37 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.