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Autonomous System

AS31287 · IPACCT CABLE Ltd

Overview

AS31287 is announced on the Internet: RIPE RIS route collectors currently see 39 IPv4 prefixes and 3 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 13,056 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 78 upstream neighbours (transit providers or peers) and 99 downstream neighbours (customers or networks it carries). Its most visible upstreams are RETN Limited (AS9002), Arelion Sweden AB (AS1299), and Level 3 Parent, LLC (AS3356). AS31287 was assigned by RIPE NCC, and its registration country is Bulgaria.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 1:19 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 77.78.152.1, the first address of 77.78.152.0/21. 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 (39 prefixes)

PrefixAddresses
45.66.44.0/24256
45.66.45.0/24256
45.66.47.0/24256
46.55.252.0/221,024
46.55.252.0/24256
46.55.253.0/24256
46.55.254.0/24256
77.78.152.0/212,048
77.78.153.0/24256
77.78.154.0/24256
80.72.64.0/24256
80.72.72.0/24256
85.187.3.0/24256
85.187.4.0/24256
85.187.6.0/24256
85.187.8.0/24256
85.187.10.0/23512
85.187.18.0/24256
85.187.20.0/24256
85.187.50.0/24256
85.187.62.0/24256
85.187.63.0/24256
85.187.222.0/24256
85.187.232.0/24256
85.187.248.0/24256
103.146.168.0/24256
103.170.192.0/23512
103.173.116.0/24256
109.121.153.0/24256
151.237.29.0/24256
151.237.91.0/24256
151.237.92.0/24256
151.237.93.0/24256
151.237.128.0/24256
185.46.160.0/221,024
185.46.163.0/24256
185.72.58.0/24256
185.200.40.0/221,024
195.85.215.0/24256

IPv6 prefixes (3 prefixes)

Prefix
2407:b6c0::/32
2a01:9e40::/32
2a03:b540::/32

Neighbours

Upstreams (transit or peers) (78)

ASNetworkVisibility
AS9002RETN Limited2,376
AS1299Arelion Sweden AB2,157
AS3356Level 3 Parent, LLC1,705
AS3491PCCW Global (HK) Ltd.1,537
AS6939Hurricane Electric LLC1,379
AS3257GTT Communications Inc.1,242
AS42295TBISS Ltd678
AS135772POWERNET505
AS5511Opentransit Orange S.A.465
AS13030Init7 (Switzerland) Ltd.262
AS34549meerfarbig GmbH & Co. KG183
AS34019Hivane Association171
AS14840BR.Digital Telecom169
AS33891Core-Backbone GmbH134
AS34927-134
AS8218Zayo Infrastructure France SA129
AS25091IP-Max SA129
AS5405Inter.link GmbH128
AS34177Celeste SAS126
AS29691-125
AS3935131173 Services AB125
AS48362-124
AS4230CLARO S.A.123
AS24961WIIT AG123
AS20764-119
AS35625Eurofiber France SAS119
AS49434FBW NETWORKS SAS119
AS8758Iway AG118
AS35280F5 Networks SARL117
AS41327Fiber Telecom S.p.A.116

The 30 most visible of 78.

Downstreams (customers) (99)

ASNetworkVisibility
AS24750MyAcct LTD1,006
AS59466EuroExpress Ltd.556
AS47697BIX.BG Ltd.536
AS47745Interlan INTERLAN BG Ltd.454
AS42721VideoMaxAVS VideoMaxAVS Ltd.448
AS31435Medicom Bulgaria Ltd.381
AS200475ET VESELIN JELQZKOV345
AS199173TechnoLux Ltd.324
AS39246Optical Structural Network Ltd.290
AS50186Pronet Telekom Ltd289
AS47374-288
AS35499-285
AS49773-284
AS60182-283
AS209156-283
AS34917-282
AS210154-282
AS41280-280
AS56642-280
AS202160-280
AS29694-279
AS49147-279
AS49658-279
AS50302-279
AS56546-279
AS56606-279
AS60916-279
AS61370-279
AS62015-279
AS62386-279

The 30 most visible of 99.

124 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.