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Autonomous System

AS5580 ยท GTT Communications Netherlands B.V.

Overview

AS5580 is announced on the Internet: RIPE RIS route collectors currently see 35 IPv4 prefixes and 2 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 20,992 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 13 upstream neighbours (transit providers or peers) and 33 downstream neighbours (customers or networks it carries). Its most visible upstreams are GTT Communications Inc. (AS3257), PCCW Global (HK) Ltd. (AS3491), and StarHub Ltd (AS4657). AS5580 was assigned by RIPE NCC, and its registration country is Netherlands.

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

Go further

The trace goes to 59.191.240.1, the first address of 59.191.240.0/20. 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 (35 prefixes)

PrefixAddresses
59.191.240.0/204,096
64.235.224.0/23512
64.235.225.0/24256
64.235.227.0/24256
64.235.228.0/24256
64.235.230.0/24256
64.235.232.0/24256
64.235.234.0/23512
64.235.236.0/24256
64.235.238.0/23512
64.235.240.0/23512
64.235.244.0/23512
64.235.244.0/24256
64.235.245.0/24256
64.235.246.0/24256
64.235.248.0/24256
64.235.249.0/24256
64.235.250.0/23512
64.235.252.0/221,024
69.31.128.0/221,024
69.31.132.0/23512
69.31.137.0/24256
69.31.138.0/24256
69.31.139.0/24256
69.31.140.0/24256
103.47.76.0/23512
103.53.152.0/23512
103.207.156.0/23512
103.230.248.0/221,024
103.232.34.0/23512
185.162.112.0/221,024
195.134.216.0/221,024
195.143.68.0/221,024
203.95.212.0/221,024
212.56.20.0/221,024

IPv6 prefixes (2 prefixes)

Prefix
2400:eac0::/32
2400:f780::/32

Neighbours

Upstreams (transit or peers) (13)

ASNetworkVisibility
AS3257GTT Communications Inc.4,685
AS3491PCCW Global (HK) Ltd.1,560
AS4657StarHub Ltd355
AS286GTT Communications Inc.27
AS6939Hurricane Electric LLC22
AS132132MyRepublic Ltd.18
AS45629JasTel Network International Gateway15
AS15802Emirates Integrated Telecommunications Company PJSC6
AS20485Joint Stock Company TransTeleCom5
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC3
AS38008Aperture Science Limited2
AS9498BHARTI Airtel Ltd.1
AS17557Pakistan Telecommunication Company Limited1

Downstreams (customers) (33)

ASNetworkVisibility
AS30058FDCservers.net1,093
AS1341Rockwell Collins, Inc.914
AS394977TAKE-TWO INTERACTIVE SOFTWARE, INC.499
AS25896IPC Network Services Inc.360
AS9829National Internet Backbone293
AS11941Pillsbury Madison & Sutro, Inc.269
AS10806AGENCE FRANCE PRESSE265
AS56077Mobius Towers V Floor264
AS3291GTT Communications Inc.261
AS1678The Dow Chemical Company260
AS131189-260
AS9229-258
AS399678-258
AS13464-179
AS3257GTT Communications Inc.158
AS13150-124
AS198651HOSTLINE, UAB117
AS38195Superloop100
AS19527-86
AS63399-62
AS62713-34
AS17060NBCUniversal33
AS16740-32
AS29802HIVELOCITY, Inc.20
AS16645-17
AS20077-16
AS133052-15
AS12257-13
AS18723-13
AS40934-12

The 30 most visible of 33.

17 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.