AS12761 COLT-CORP-IT COLT Technology Services Group Limited
AS12761 is operated by COLT-CORP-IT COLT Technology Services Group Limited and registered with RIPE NCC (GB) since 1999-10-28.
It announces 6 IPv4 and 0 IPv6 prefixes, 100% of them RPKI valid.
RIPE RIS sees 1 upstream and peer networks and 0 downstream networks next to it.
| Name | COLT-CORP-IT COLT Technology Services Group Limited |
|---|---|
| Registry (RIR) | RIPE NCC |
| Country | United Kingdom (GB) |
| Delegated on | 1999-10-28 |
| Prefixes (IPv4 / IPv6) | 6 / 0 |
| RPKI valid | 100% (6 / 6) |
| Upstreams and peers | 1 |
| Downstream networks | 0 |
Routing health
- AS12761 announces 6 IPv4 and 0 IPv6 prefixes.
- No IPv6 prefixes announced.
- All 6 announced prefixes are RPKI valid.
- One upstream or peer seen (AS8220): an outage there takes the whole network off the internet.
For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.
Announced prefixes 6
- 193.118.162.0/24
- 193.118.164.0/24
- 217.111.164.0/24
- 217.111.165.0/24
- 217.111.166.0/24
- 217.111.167.0/24
Upstreams and peers 1
The networks RIPE RIS sees next to AS12761 in BGP paths, the most visible first.
More about AS12761
Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-15 04:27 UTC. The country is where the AS number was registered, not necessarily where the network operates.