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Autonomous System

AS56478 · Hyperoptic Ltd

Overview

AS56478 is announced on the Internet: RIPE RIS route collectors currently see 109 IPv4 prefixes and 3 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 141,312 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 53 upstream neighbours (transit providers or peers) and no downstream neighbour (customers or networks it carries). Its most visible upstreams are Zayo Bandwidth (AS6461), NTT America, Inc. (AS2914), and Hurricane Electric LLC (AS6939). AS56478 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 7:02 PM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 88.98.192.1

The trace goes to 88.98.192.1, the first address of 88.98.192.0/18. 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 (109 prefixes)

PrefixAddresses
31.14.248.0/221,024
37.156.72.0/221,024
68.168.32.0/198,192
68.168.40.0/221,024
68.168.44.0/221,024
68.168.60.0/221,024
88.98.192.0/1816,384
88.98.200.0/221,024
88.98.204.0/221,024
88.98.216.0/23512
88.98.240.0/204,096
88.98.240.0/221,024
89.32.120.0/221,024
89.34.164.0/221,024
89.35.196.0/221,024
89.36.64.0/212,048
89.39.136.0/212,048
89.44.40.0/221,024
93.115.192.0/221,024
137.220.64.0/1816,384
137.220.68.0/221,024
137.220.72.0/212,048
137.220.80.0/221,024
137.220.84.0/221,024
137.220.112.0/204,096
137.220.112.0/23512
137.220.112.0/24256
137.220.113.0/24256
137.220.114.0/23512
137.220.116.0/23512
137.220.116.0/24256
137.220.117.0/24256
137.220.118.0/23512
137.220.118.0/24256
137.220.119.0/24256
137.220.120.0/23512
137.220.120.0/24256
137.220.121.0/24256
137.220.122.0/23512
137.220.122.0/24256
137.220.123.0/24256
137.220.124.0/221,024
140.228.32.0/198,192
140.228.40.0/221,024
140.228.44.0/221,024
140.228.48.0/221,024
140.228.52.0/221,024
140.228.56.0/221,024
140.228.64.0/198,192
140.228.80.0/212,048
140.228.92.0/221,024
141.0.144.0/212,048
141.0.152.0/212,048
143.58.128.0/1816,384
143.58.128.0/212,048
143.58.136.0/212,048
143.58.144.0/221,024
143.58.148.0/221,024
143.58.152.0/212,048
143.58.160.0/212,048
143.58.168.0/212,048
143.58.176.0/212,048
143.58.184.0/212,048
143.58.192.0/1816,384
143.58.192.0/212,048
143.58.200.0/212,048
143.58.212.0/221,024
143.58.216.0/212,048
143.58.216.0/221,024
143.58.220.0/221,024
143.58.224.0/221,024
143.58.228.0/221,024
143.58.232.0/221,024
143.58.236.0/221,024
143.58.240.0/212,048
143.58.248.0/212,048
152.37.64.0/1816,384
152.37.84.0/221,024
152.37.88.0/221,024
152.37.100.0/23512
152.37.108.0/221,024
152.37.114.0/23512
152.37.116.0/221,024
152.37.120.0/221,024
152.37.124.0/221,024
152.37.124.0/23512
152.37.126.0/23512
185.24.120.0/221,024
188.172.144.0/204,096
188.210.208.0/212,048
188.210.208.0/221,024
188.210.212.0/221,024
188.210.212.0/23512
188.210.214.0/23512
188.211.160.0/221,024
188.213.136.0/221,024
188.214.8.0/212,048
209.35.64.0/198,192
209.35.64.0/212,048
209.35.72.0/221,024

Showing the first 100 of 109, in address order. Complete list on RIPEstat

IPv6 prefixes (3 prefixes)

Prefix
2a01:4b00::/32
2a01:4b00:d000::/36
2a01:4b00:e000::/35

Neighbours

Upstreams (transit or peers) (53)

ASNetworkVisibility
AS6461Zayo Bandwidth223
AS2914NTT America, Inc.176
AS6939Hurricane Electric LLC107
AS9002RETN Limited10
AS25091IP-Max SA10
AS8220COLT Technology Services Group Limited9
AS33891Core-Backbone GmbH8
AS8218Zayo Infrastructure France SA7
AS5405Inter.link GmbH6
AS34549meerfarbig GmbH & Co. KG6
AS35280F5 Networks SARL5
AS20562Broadband Hosting B.V.4
AS37468Angola Cables4
AS137409GSL Networks Pty LTD4
AS3216PJSC "Vimpelcom"3
AS7195EDGEUNO S.A.S3
AS29075IELO-LIAZO SERVICES SAS3
AS34927iFog GmbH3
AS50304Blix Solutions AS3
AS1267WIND TRE S.P.A.2
AS3214xTom GmbH2
AS4455IX Reach Ltd2
AS12779IT.Gate S.p.A.2
AS14840BR.Digital Telecom2
AS34177Celeste SAS2
AS37100SEACOM Limited2
AS37497Network Platforms (PTY) LTD2
AS3935131173 Services AB2
AS41327Fiber Telecom S.p.A.2
AS48362Stadtwerke Feldkirch2

The 30 most visible of 53.

Downstreams (customers) (0)

None seen.

39 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.