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Autonomous System

AS49981 · WorldStream WorldStream B.V.

Overview

AS49981 is announced on the Internet: RIPE RIS route collectors currently see 113 IPv4 prefixes and 20 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 73,472 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 103 upstream neighbours (transit providers or peers) and 59 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), Cogent Communications, LLC (AS174), and Opentransit Orange S.A. (AS5511). AS49981 was assigned by RIPE NCC, and its registration country is Netherlands.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:01 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 109.236.80.1, the first address of 109.236.80.0/20. 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 (113 prefixes)

PrefixAddresses
2.59.168.0/221,024
5.252.152.0/24256
31.58.208.0/24256
37.202.210.0/24256
38.225.110.0/24256
45.14.132.0/221,024
45.82.64.0/221,024
45.91.211.0/24256
45.93.23.0/24256
45.130.201.0/24256
45.145.52.0/24256
45.146.7.0/24256
45.146.129.0/24256
45.150.156.0/221,024
62.112.8.0/221,024
80.79.4.0/221,024
81.29.150.0/24256
82.29.108.0/24256
82.39.154.0/24256
82.41.131.0/24256
87.192.44.0/24256
87.232.81.0/24256
87.232.85.0/24256
87.236.147.0/24256
89.38.96.0/221,024
89.39.104.0/221,024
89.126.224.0/24256
89.126.227.0/24256
89.213.119.0/24256
89.248.66.0/24256
91.124.209.0/24256
91.212.229.0/24256
91.226.31.0/24256
91.229.23.0/24256
91.232.105.0/24256
91.234.254.0/24256
93.190.136.0/212,048
95.135.200.0/24256
104.234.138.0/24256
108.186.205.0/24256
109.122.12.0/24256
109.236.80.0/204,096
145.79.162.0/24256
146.19.188.0/24256
147.90.59.0/24256
163.5.214.0/24256
175.110.112.0/204,096
176.61.129.0/24256
178.95.157.0/24256
178.132.0.0/212,048
178.218.196.0/221,024
185.2.80.0/221,024
185.4.112.0/221,024
185.7.81.0/24256
185.11.217.0/24256
185.21.60.0/221,024
185.21.60.0/24256
185.21.63.0/24256
185.28.36.0/24256
185.99.99.0/24256
185.100.232.0/221,024
185.105.192.0/221,024
185.132.132.0/221,024
185.132.176.0/221,024
185.165.240.0/221,024
185.172.88.0/221,024
185.172.108.0/24256
185.173.160.0/221,024
185.177.124.0/221,024
185.180.220.0/221,024
185.182.192.0/221,024
185.182.192.0/24256
185.182.193.0/24256
185.182.194.0/24256
185.183.32.0/221,024
185.184.192.0/221,024
185.185.48.0/221,024
185.185.127.0/24256
185.191.0.0/221,024
185.193.65.0/24256
185.197.31.0/24256
185.200.12.0/24256
185.244.138.0/24256
188.208.196.0/24256
188.213.216.0/24256
190.2.128.0/204,096
190.2.144.0/204,096
191.40.16.0/24256
191.44.97.0/24256
192.71.151.0/24256
193.8.1.0/24256
193.8.94.0/24256
193.9.30.0/23512
193.176.184.0/24256
193.176.187.0/24256
193.200.164.0/24256
194.88.104.0/221,024
194.99.52.0/24256
195.85.197.0/24256
195.128.184.0/23512

Showing the first 100 of 113, in address order. Complete list on RIPEstat

IPv6 prefixes (20 prefixes)

Prefix
2a00:7c80::/32
2a00:7c81::/32
2a00:7c82::/32
2a00:7c83::/32
2a02:20b3:100::/40
2a02:20b3:300::/40
2a03:69c0:100::/40
2a06:3880::/29
2a06:d641::/32
2a09:e01::/32
2a09:9446::/32
2a0b:2d82::/32
2a0d:2d80::/32
2a0e:fd45:2f50::/48
2a0f:3045::/32
2a0f:8442::/32
2a0f:9a80::/29
2a10:3c82::/32
2a12:e341::/32
2a13:9500:ac::/48

Neighbours

Upstreams (transit or peers) (103)

ASNetworkVisibility
AS1299Arelion Sweden AB1,991
AS174Cogent Communications, LLC1,912
AS5511Opentransit Orange S.A.993
AS6939Hurricane Electric LLC982
AS6830LibertyGlobal Liberty Global Europe Holding B.V.889
AS3320Deutsche Telekom AG334
AS13030Init7 (Switzerland) Ltd.212
AS34549meerfarbig GmbH & Co. KG165
AS50304Blix Solutions AS148
AS25091IP-Max SA137
AS5405Inter.link GmbH134
AS35280F5 Networks SARL128
AS20764CJSC RASCOM113
AS20485Joint Stock Company TransTeleCom112
AS4230CLARO S.A.108
AS48362Stadtwerke Feldkirch104
AS4637Telstra Global103
AS12779IT.Gate S.p.A.102
AS29691Nine Internet Solutions AG99
AS34177Celeste SAS98
AS58057Securebit AG98
AS24961WIIT AG96
AS14840BR.Digital Telecom95
AS8758Iway AG94
AS3356Level 3 Parent, LLC93
AS3935131173 Services AB90
AS41327-89
AS49434FBW NETWORKS SAS88
AS61049Exascale Ltd88
AS35625-86

The 30 most visible of 103.

Downstreams (customers) (59)

ASNetworkVisibility
AS200132Peter-Paul Maria Kurstjens848
AS209183AkhaliNet LLC737
AS60790Schokker IT B.V.613
AS207728Virterion EUROHOSTER Ltd.356
AS9558PrimeCrown Technologies Private Limited354
AS214673mijnhost mijn.host B.V.353
AS214970Maarten Strootman trading as Titanic Technologies347
AS64245DigitalFyre Internet Solutions, LLC.346
AS150393LAYER WEBHOST (PVT.) LIMITED346
AS211839JMT Paso Limited346
AS397666-346
AS401605Web Host Most, LLC346
AS206994-333
AS205290-320
AS199884-301
AS8315-300
AS35055-285
AS136787PacketHub S.A.284
AS202225-280
AS198037-278
AS51447-274
AS219059-272
AS139884-270
AS216022-270
AS6872-269
AS197684-269
AS198180-269
AS199924-269
AS205380-269
AS215225-269

The 30 most visible of 59.

129 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.