AS51561 ICUK Computing Services Limited 🇬🇧 GB
Announcing 74 prefixes, seen at the RIS collectors.
IPv4 prefixes
72
80,128 (313 × /24)
IPv6 prefixes
2
1 × /32
Upstreams
6
transit providers observed
Peers
15
settlement-free adjacencies
Downstreams
2
transit customers observed
Customer cone
3
ASes reachable through it
Registry and operator data
- AS number
- AS51561
- Name
- ICUK Computing Services Limited
- Organisation
- ICUK Computing Services Ltd
- Country
- 🇬🇧 GB
- RIR
- RIPENCC
- Allocated
- 2010-09-28
- Network type
- NSP
- Scope
- Europe
- Peering policy
- Open
- IRR as-set
- AS-ICUK
- Website
- https://www.icuk.net/
- PeeringDB
- net/8468
- Exchanges
- 3
- Facilities
- 3
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
2 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 2a00:b900::/32 v6 | no ROA | 37 | 3454951561 | 2026-09-18 |
| 2a00:b900:2::/48 v6 | no ROA | 32 | 3454917451561 | 2026-09-18 |