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Autonomous System

AS50673 · Serverius Holding B.V.

Overview

AS50673 is announced on the Internet: RIPE RIS route collectors currently see 73 IPv4 prefixes and 13 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 58,112 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 81 upstream neighbours (transit providers or peers) and 1,165 downstream neighbours (customers or networks it carries). Its most visible upstreams are Cogent Communications, LLC (AS174), Hurricane Electric LLC (AS6939), and Core-Backbone GmbH (AS33891). AS50673 was assigned by RIPE NCC, and its registration country is Netherlands.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:02 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 5.255.64.1, the first address of 5.255.64.0/19. 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 (73 prefixes)

PrefixAddresses
5.178.64.0/212,048
5.178.64.0/24256
5.188.12.0/221,024
5.255.64.0/198,192
5.255.72.0/24256
5.255.77.0/24256
5.255.94.0/23512
31.42.188.0/23512
45.94.200.0/221,024
45.141.28.0/221,024
45.148.141.0/24256
45.155.7.0/24256
45.156.48.0/221,024
46.175.144.0/212,048
46.249.32.0/198,192
46.249.36.0/24256
46.249.42.0/24256
46.249.56.0/24256
46.249.59.0/24256
46.249.60.0/221,024
77.83.102.0/24256
84.246.80.0/24256
87.236.164.0/24256
88.218.28.0/24256
88.218.132.0/221,024
89.117.24.0/24256
91.195.80.0/24256
91.195.81.0/24256
91.199.167.0/24256
91.200.147.0/24256
91.208.52.0/24256
91.213.69.0/24256
91.219.62.0/23512
91.220.37.0/24256
91.221.69.0/24256
91.247.181.0/24256
93.158.200.0/212,048
93.158.200.0/24256
93.158.208.0/204,096
93.158.208.0/24256
93.158.215.0/24256
93.185.163.0/24256
109.72.125.0/24256
146.185.253.0/24256
147.78.121.0/24256
160.20.152.0/221,024
176.117.72.0/221,024
178.19.112.0/204,096
178.21.16.0/212,048
178.21.22.0/24256
185.8.176.0/221,024
185.12.12.0/221,024
185.53.160.0/221,024
185.67.0.0/24256
185.79.112.0/221,024
185.79.113.0/24256
185.89.132.0/24256
185.89.133.0/24256
185.89.134.0/24256
185.116.164.0/221,024
185.172.56.0/24256
185.181.165.0/24256
185.193.216.0/221,024
185.233.66.0/24256
185.253.219.0/24256
185.254.172.0/221,024
194.4.14.0/23512
194.4.154.0/23512
194.104.236.0/24256
194.107.76.0/221,024
194.107.79.0/24256
194.247.38.0/24256
217.65.131.0/24256

IPv6 prefixes (13 prefixes)

Prefix
2001:67c:b0::/48
2001:67c:e98::/48
2001:67c:1330::/48
2a00:1ca8::/32
2a00:1ca8:77::/48
2a00:1caa::/32
2a02:1680::/32
2a03:3f40::/32
2a09:4d41::/32
2a09:aa80::/32
2a0a:3f40::/32
2a0c:5140::/32
2a0e:c9c0::/29

Neighbours

Upstreams (transit or peers) (81)

ASNetworkVisibility
AS174Cogent Communications, LLC18,957
AS6939Hurricane Electric LLC14,728
AS33891Core-Backbone GmbH12,160
AS9002RETN Limited5,679
AS58057Securebit AG4,947
AS6453TATA COMMUNICATIONS (AMERICA) INC3,477
AS6830LibertyGlobal Liberty Global Europe Holding B.V.3,245
AS6762TELECOM ITALIA SPARKLE S.p.A.1,881
AS7195EDGEUNO S.A.S1,751
AS14840BR.Digital Telecom1,253
AS22356Durand do Brasil Ltda1,148
AS9498BHARTI Airtel Ltd.1,108
AS37468Angola Cables946
AS5405Inter.link GmbH863
AS137409GSL Networks Pty LTD619
AS13030Init7 (Switzerland) Ltd.497
AS34927iFog GmbH455
AS20764CJSC RASCOM388
AS24961WIIT AG329
AS25091IP-Max SA315
AS49434FBW NETWORKS SAS289
AS8218Zayo Infrastructure France SA279
AS47147Anexia Cloud Solutions GmbH273
AS3935131173 Services AB255
AS12779-232
AS34177Celeste SAS231
AS3216PJSC "Vimpelcom"225
AS24482-225
AS37100SEACOM Limited225
AS41327Fiber Telecom S.p.A.222

The 30 most visible of 81.

Downstreams (customers) (1,165)

ASNetworkVisibility
AS174Cogent Communications, LLC59,400
AS6453TATA COMMUNICATIONS (AMERICA) INC12,416
AS33891Core-Backbone GmbH8,469
AS9498BHARTI Airtel Ltd.5,468
AS6762TELECOM ITALIA SPARKLE S.p.A.4,784
AS34872Sarah Rossius trading as Servperso Systems2,545
AS6830LibertyGlobal Liberty Global Europe Holding B.V.2,151
AS9002RETN Limited1,759
AS53356RANGE CLOUD - Free Range Cloud Hosting Inc.1,668
AS14840BR.Digital Telecom1,560
AS58061Scalaxy B.V.1,449
AS137409GSL Networks Pty LTD1,238
AS37468Angola Cables1,176
AS23764CTGNet1,136
AS200904-1,090
AS51430-1,082
AS264409Huge Solucoes Corporativas Ltda972
AS201789-964
AS43414-890
AS213373-889
AS133296Web Werks India Pvt. Ltd.833
AS7195EDGEUNO S.A.S763
AS3216PJSC "Vimpelcom"740
AS64049-728
AS32338-710
AS37662West Indian Ocean Cable Company707
AS20485Joint Stock Company TransTeleCom698
AS204094-675
AS34971-634
AS30844Liquid Telecommunications Ltd629

The 30 most visible of 1,165.

820 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.