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Autonomous System

AS39572 · DataWeb Global Group B.V.

Overview

AS39572 is announced on the Internet: RIPE RIS route collectors currently see 89 IPv4 prefixes and 33 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 60,416 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 64 upstream neighbours (transit providers or peers) and 10 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), Cogent Communications, LLC (AS174), and NTT America, Inc. (AS2914). AS39572 was assigned by RIPE NCC, and its registration country is Netherlands.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 6:35 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 88.208.0.1, the first address of 88.208.0.0/18. 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 (89 prefixes)

PrefixAddresses
2.59.36.0/221,024
31.14.234.0/24256
31.14.235.0/24256
31.220.24.0/221,024
31.220.25.0/24256
45.12.244.0/24256
45.13.3.0/24256
45.131.144.0/221,024
45.133.44.0/24256
45.133.45.0/24256
45.138.124.0/24256
45.138.125.0/24256
45.138.126.0/24256
45.138.127.0/24256
45.138.128.0/221,024
45.143.248.0/24256
45.143.250.0/23512
45.144.148.0/24256
45.144.149.0/24256
45.144.150.0/24256
45.144.151.0/24256
45.149.14.0/23512
45.149.14.0/24256
45.149.15.0/24256
45.156.16.0/221,024
45.156.19.0/24256
46.229.160.0/204,096
46.229.168.0/24256
78.40.110.0/24256
88.208.0.0/1816,384
88.208.9.0/24256
88.208.10.0/24256
88.208.12.0/23512
88.208.16.0/212,048
88.208.25.0/24256
88.208.31.0/24256
88.208.32.0/204,096
88.208.49.0/24256
88.208.52.0/221,024
89.35.127.0/24256
91.233.199.0/24256
92.246.92.0/221,024
93.113.100.0/24256
94.101.116.0/24256
94.101.117.0/24256
94.101.118.0/24256
94.101.119.0/24256
94.176.210.0/23512
176.119.128.0/24256
176.119.130.0/24256
176.119.131.0/24256
185.56.232.0/221,024
185.98.53.0/24256
185.98.54.0/23512
185.162.84.0/221,024
185.162.84.0/24256
185.162.85.0/24256
185.162.86.0/24256
185.162.87.0/24256
185.171.228.0/24256
185.177.92.0/221,024
185.185.12.0/24256
185.185.15.0/24256
185.189.68.0/221,024
185.191.168.0/24256
185.191.170.0/24256
185.196.192.0/212,048
185.196.196.0/221,024
185.197.120.0/221,024
185.207.236.0/24256
185.208.128.0/24256
185.208.130.0/24256
185.208.131.0/24256
185.251.0.0/24256
185.251.3.0/24256
188.209.213.0/24256
188.240.13.0/24256
188.241.87.0/24256
192.243.48.0/204,096
193.32.136.0/24256
193.148.12.0/24256
193.148.13.0/24256
193.163.45.0/24256
212.6.57.0/24256
213.174.128.0/198,192
213.174.136.0/24256
213.174.138.0/23512
217.19.2.0/24256
217.19.10.0/24256

IPv6 prefixes (33 prefixes)

Prefix
2a02:b48::/32
2a02:b48:4000::/40
2a02:b48:800b::/48
2a02:b48:8016::/48
2a02:b48:8019::/48
2a02:b48:801c::/48
2a02:b48:801d::/48
2a02:b48:801f::/48
2a02:b48:8020::/48
2a02:b48:8103::/48
2a02:b48:8105::/48
2a02:b48:8109::/48
2a02:b48:810a::/48
2a02:b48:810d::/48
2a02:b48:8111::/48
2a02:b48:8114::/48
2a02:b48:8204::/48
2a02:b48:8207::/48
2a02:b48:8208::/48
2a02:b48:8300::/40
2a02:b48:8400::/40
2a02:b48:8500::/40
2a02:b48:8600::/40
2a02:b48:8800::/40
2a02:b48:8a00::/40
2a02:b48:9000::/40
2a02:b48:9100::/40
2a02:b48:9200::/40
2a02:b49::/32
2a02:b4a::/32
2a02:b4b::/32
2a02:b4c::/32
2a02:b4d::/32

Neighbours

Upstreams (transit or peers) (64)

ASNetworkVisibility
AS1299Arelion Sweden AB1,611
AS174Cogent Communications, LLC1,171
AS2914NTT America, Inc.690
AS3491PCCW Global (HK) Ltd.616
AS6939Hurricane Electric LLC553
AS13030Init7 (Switzerland) Ltd.61
AS5405Inter.link GmbH44
AS50629LWLcom GmbH27
AS29075IELO-LIAZO SERVICES SAS25
AS4230CLARO S.A.24
AS8220COLT Technology Services Group Limited24
AS4637Telstra Global23
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH22
AS37468Angola Cables19
AS1257Tele2 Sverige AB18
AS24961WIIT AG18
AS3935131173 Services AB18
AS41327Fiber Telecom S.p.A.18
AS61049Exascale Ltd18
AS12779IT.Gate S.p.A.17
AS15412Flag Telecom UK Limited16
AS41095IPTP LTD16
AS20562Broadband Hosting B.V.15
AS140951-14
AS13786Seabras 1 USA, LLC12
AS9002RETN Limited11
AS21320-11
AS42708-10
AS2518-9
AS6204INTERKVM HOST SRL9

The 30 most visible of 64.

Downstreams (customers) (10)

ASNetworkVisibility
AS60906Playdom B.V.994
AS214124intrahost Intrahost Solutions Ltd603
AS216070rcstechnologies RCS Technologies FZE LLC377
AS201024DATAWEB GLOBAL LP.370
AS44550Techno G Limited367
AS209929AWM LAB LTD321
AS209366SEMrush CY LTD253
AS21030Cluster LLC129
AS2914NTT America, Inc.8
AS65503-1

43 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.