AS-ICUK ICUK Computing Services Limited
An as-set registered in RIPE, maintained by ICUK-MNT. It names 7 ASes and 1 set directly; followed all the way down, it reaches 10 ASes through 1 nested sets.
Members
What AS-ICUK lists
7 ASes and 1 set, written in the object across every registry that holds it. Sets open their own page.
Prefixes
What AS-ICUK covers
Every route object in the IRR whose origin is one of the 10 ASes it reaches: the prefixes a filter built from AS-ICUK (with bgpq4, say) would allow. 138 IPv4 and 22 IPv6. Every one is in the IRR API.
138 IPv4 prefixes
109.176.243.0/24138.124.128.0/20142.173.0.0/21142.173.112.0/21142.173.120.0/21142.173.128.0/21142.173.136.0/21142.173.144.0/21142.173.152.0/21142.173.16.0/21142.173.192.0/21142.173.200.0/21142.173.24.0/21142.173.64.0/21142.173.72.0/21142.173.8.0/21142.173.80.0/21142.173.88.0/21151.243.216.0/24154.56.248.0/22154.60.74.0/24154.61.54.0/24154.61.55.0/24181.215.32.0/24185.132.52.0/24185.137.240.0/24185.137.241.0/24185.140.16.0/22185.140.17.0/24185.140.18.0/24185.140.19.0/24185.145.152.0/22185.152.2.0/24185.168.10.0/24185.168.144.0/22185.168.144.0/24185.168.145.0/24185.2.236.0/22185.2.236.0/24185.2.237.0/24185.2.238.0/24185.2.239.0/24185.201.208.0/22185.21.255.0/24185.225.124.0/24185.234.255.0/24185.243.62.0/24185.243.63.0/24185.250.8.0/22185.253.88.0/24185.253.89.0/24185.253.90.0/24185.253.91.0/24185.32.55.0/24185.35.148.0/22185.35.148.0/24185.35.149.0/24185.35.150.0/24185.35.151.0/24185.36.103.0/24188.211.249.0/24188.240.160.0/19193.161.10.0/24193.161.9.0/24193.187.0.0/24194.15.37.0/24195.10.233.0/24198.170.0.0/17198.171.0.0/16198.172.0.0/18198.173.64.0/18199.103.192.0/18199.236.0.0/16199.237.0.0/18199.237.128.0/17199.239.192.0/182.56.84.0/222.56.84.0/242.56.85.0/242.56.86.0/242.56.87.0/24205.157.160.0/19205.157.160.0/23206.184.128.0/17206.184.64.0/18206.239.128.0/17206.239.64.0/18206.50.64.0/18207.137.128.0/17207.20.0.0/18207.20.128.0/17209.39.128.0/17209.57.128.0/17209.70.0.0/17209.70.128.0/18213.218.252.0/23216.42.0.0/17216.44.128.0/17217.22.12.0/2437.235.43.0/2445.145.86.0/2345.157.175.0/2445.93.112.0/2245.93.112.0/2345.93.112.0/2445.93.114.0/2445.93.115.0/2446.102.192.0/1946.102.223.0/2446.226.120.0/2446.33.128.0/195.133.168.0/235.133.170.0/235.254.160.0/235.254.162.0/235.254.164.0/2362.84.169.0/2478.41.136.0/2480.209.128.0/1980.209.160.0/2080.209.176.0/2180.209.184.0/2280.209.188.0/2380.209.190.0/2380.247.216.0/2480.95.192.0/2082.27.23.0/2482.39.142.0/2482.39.98.0/2487.199.140.0/2387.199.140.0/2487.199.141.0/2489.107.24.0/2289.117.218.0/2489.213.96.0/2489.33.9.0/2491.217.229.0/2491.233.33.0/24
22 IPv6 prefixes
2001:67c:b1c::/482a00:b900::/322a0b:3300::/292a0b:9400::/302a0b:9404::/322a0b:9405:8000::/332a0b:9405::/322a0b:9405::/332a0f:85c1:e26::/482a11:29c0:4d00::/402a11:f2c0:ad00::/402a13:3840:4000::/342a13:3840::/392a14:f700::/292a14:f700::/302a14:f700::/322a14:f702::/322a14:f703::/322a14:f704::/322a14:f705::/322a14:f706::/322a14:f707::/32
Registries
Each registry’s copy
RIPE8 membersICUK Computing Services Limited
| Maintained by | ICUK-MNT |
| Last modified | 2026-09-07T12:32:32Z |
| Members | AS51561 AS42330 AS199204 AS209505 AS208636 AS201060 AS-UNCHAINED AS215638 |
| mbrs-by-ref | N |
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