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Autonomous System

AS60187 ยท London Grid for Learning Trust

Overview

AS60187 is announced on the Internet: RIPE RIS route collectors currently see 47 IPv4 prefixes and 2 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 71,424 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 34 upstream neighbours (transit providers or peers) and 3 downstream neighbours (customers or networks it carries). Its most visible upstreams are Jisc Services Limited (AS786), Hurricane Electric LLC (AS6939), and IP-Max SA (AS25091). AS60187 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 8:58 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 151.133.128.1, the first address of 151.133.128.0/18. 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 (47 prefixes)

PrefixAddresses
5.150.22.0/24256
5.150.23.0/24256
5.150.62.0/24256
5.150.64.0/24256
5.150.65.0/24256
5.150.66.0/24256
5.150.67.0/24256
5.150.68.0/24256
5.150.69.0/24256
5.150.70.0/24256
5.150.71.0/24256
5.150.74.0/24256
5.150.76.0/24256
5.150.80.0/204,096
5.150.96.0/198,192
5.150.96.0/221,024
5.150.100.0/221,024
5.150.104.0/221,024
5.150.108.0/221,024
5.150.112.0/221,024
5.150.116.0/221,024
5.150.120.0/221,024
5.150.124.0/221,024
91.198.180.0/24256
91.216.181.0/24256
91.216.246.0/24256
91.234.214.0/24256
91.236.56.0/24256
151.133.0.0/204,096
151.133.16.0/212,048
151.133.24.0/212,048
151.133.32.0/212,048
151.133.48.0/204,096
151.133.128.0/1816,384
151.133.192.0/198,192
151.133.224.0/212,048
151.133.236.0/24256
151.133.237.0/24256
151.133.240.0/204,096
171.33.192.0/212,048
171.33.192.0/221,024
171.33.196.0/221,024
171.33.200.0/212,048
171.33.208.0/212,048
171.33.216.0/212,048
193.105.13.0/24256
195.191.66.0/23512

IPv6 prefixes (2 prefixes)

Prefix
2a02:af40::/29
2a02:af40::/30

Neighbours

Upstreams (transit or peers) (34)

ASNetworkVisibility
AS786Jisc Services Limited1,213
AS6939Hurricane Electric LLC21
AS25091IP-Max SA8
AS34549meerfarbig GmbH & Co. KG6
AS5405Inter.link GmbH5
AS35280F5 Networks SARL5
AS34927iFog GmbH3
AS37468Angola Cables3
AS50304Blix Solutions AS3
AS1267WIND TRE S.P.A.2
AS4455IX Reach Ltd2
AS12779-2
AS14840BR.Digital Telecom2
AS29075-2
AS34177Celeste SAS2
AS37100SEACOM Limited2
AS37497Network Platforms (PTY) LTD2
AS41327Fiber Telecom S.p.A.2
AS48362Stadtwerke Feldkirch2
AS1031PEER 1031 LLC1
AS3741Dimension Data1
AS4657StarHub Ltd1
AS6204INTERKVM HOST SRL1
AS6797GlobalConnect AB1
AS7195EDGEUNO S.A.S1
AS9044BSE Software GmbH1
AS15802Emirates Integrated Telecommunications Company PJSC1
AS15958CETIN Ltd. Belgrade1
AS20562Broadband Hosting B.V.1
AS21215-1

The 30 most visible of 34.

Downstreams (customers) (3)

ASNetworkVisibility
AS211775London Grid for Learning Trust262
AS57377LONDON BOROUGH OF MERTON257
AS56929WANDSWORTH-BOROUGH-COUNCIL255

28 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.