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Autonomous System

AS61323 · ANS ACADEMY LIMITED

Overview

AS61323 is announced on the Internet: RIPE RIS route collectors currently see 60 IPv4 prefixes and 6 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 80,896 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 49 upstream neighbours (transit providers or peers) and 4 downstream neighbours (customers or networks it carries). Its most visible upstreams are Zayo Bandwidth (AS6461), Cogent Communications, LLC (AS174), and GTT Communications Inc. (AS3257). AS61323 was assigned by RIPE NCC, and its registration country is United Kingdom.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 8:57 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 46.37.160.1, the first address of 46.37.160.0/19. 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 (60 prefixes)

PrefixAddresses
31.193.0.0/204,096
37.220.88.0/212,048
45.67.172.0/221,024
45.84.20.0/221,024
45.84.20.0/24256
45.84.21.0/24256
45.84.22.0/24256
45.131.136.0/221,024
45.145.100.0/221,024
45.152.252.0/24256
45.152.255.0/24256
45.157.40.0/221,024
46.37.160.0/198,192
78.24.88.0/24256
78.24.89.0/24256
78.24.90.0/23512
78.109.160.0/204,096
78.137.112.0/204,096
80.66.200.0/221,024
80.244.176.0/204,096
81.201.128.0/204,096
94.229.160.0/204,096
109.108.128.0/198,192
159.253.208.0/212,048
176.124.52.0/221,024
178.238.128.0/204,096
185.55.76.0/23512
185.55.77.0/24256
185.55.78.0/23512
185.156.64.0/24256
185.156.65.0/24256
185.156.66.0/23512
185.160.180.0/221,024
185.160.252.0/23512
185.160.254.0/24256
185.160.255.0/24256
185.162.68.0/23512
185.162.224.0/221,024
185.166.128.0/221,024
185.181.196.0/221,024
185.182.88.0/221,024
185.197.60.0/221,024
185.207.108.0/221,024
185.210.196.0/221,024
185.213.116.0/221,024
185.216.76.0/221,024
185.217.40.0/221,024
185.220.60.0/221,024
185.221.204.0/221,024
185.226.220.0/221,024
185.234.36.0/221,024
185.241.248.0/221,024
185.241.248.0/24256
185.241.249.0/24256
185.241.250.0/24256
192.166.45.0/24256
192.166.46.0/23512
193.39.252.0/221,024
194.39.164.0/221,024
212.36.126.0/24256

IPv6 prefixes (6 prefixes)

Prefix
2a02:21a8::/48
2a02:21a8:1::/48
2a02:22d0::/32
2a02:22d0:c::/48
2a09:ba00:4::/48
2a0c:3dc0::/29

Neighbours

Upstreams (transit or peers) (49)

ASNetworkVisibility
AS6461Zayo Bandwidth372
AS174Cogent Communications, LLC247
AS3257GTT Communications Inc.220
AS6939Hurricane Electric LLC184
AS25091IP-Max SA33
AS13030Init7 (Switzerland) Ltd.29
AS34549meerfarbig GmbH & Co. KG21
AS9002RETN Limited18
AS5405Inter.link GmbH13
AS50304Blix Solutions AS12
AS34927iFog GmbH11
AS35280F5 Networks SARL10
AS3214xTom GmbH8
AS12779IT.Gate S.p.A.8
AS14840BR.Digital Telecom8
AS33891Core-Backbone GmbH8
AS34177-8
AS37497Network Platforms (PTY) LTD8
AS3935131173 Services AB8
AS48362Stadtwerke Feldkirch8
AS7195EDGEUNO S.A.S7
AS8218Zayo Infrastructure France SA7
AS29075IELO-LIAZO SERVICES SAS7
AS20562Broadband Hosting B.V.6
AS8455atom86 BV5
AS37468Angola Cables5
AS286GTT Communications Inc.4
AS3741Dimension Data4
AS4455IX Reach Ltd4
AS6204INTERKVM HOST SRL4

The 30 most visible of 49.

Downstreams (customers) (4)

ASNetworkVisibility
AS49229ANS Group Limited270
AS201493ALVARIA TECHNOLOGIES UK LIMITED260
AS47583Hostinger International Limited233
AS208180cts Bluecube Cyber Security Solutions Limited9

38 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.