AS31708 Coreix Limited
AS31708 is operated by Coreix Limited and registered with RIPE NCC (GB) since 2004-07-21.
It announces 23 IPv4 and 2 IPv6 prefixes, 80% of them RPKI valid.
RIPE RIS sees 1 upstream and peer networks and 5 downstream networks next to it.
PeeringDB lists it as a Content network at 1 internet exchange and 4 facilities. Its peering policy is open.
| Name | Coreix Limited |
|---|---|
| Registry (RIR) | RIPE NCC |
| Country | United Kingdom (GB) |
| Delegated on | 2004-07-21 |
| Network type | Content, Regional |
| Peering policy | Open |
| IRR as-set | AS-COREIX |
| Prefixes (IPv4 / IPv6) | 23 / 2 |
| RPKI valid | 80% (20 / 25) |
| Upstreams and peers | 1 |
| Downstream networks | 5 |
| Website | coreix.net |
Routing health
- AS31708 announces 23 IPv4 and 2 IPv6 prefixes.
- 20 of 25 announced prefixes are RPKI valid.
- 5 announced prefixes are not covered by a ROA of AS31708 (they may have none, or another network’s).
- One upstream or peer seen (AS25577): 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 25
- 31.193.168.0/21
- 62.197.40.0/23
- 62.197.44.0/24
- 62.197.50.0/23
- 83.142.24.0/22
- 83.142.29.0/24
- 85.13.192.0/18
- 89.187.64.0/22
- 89.187.70.0/23
- 89.187.72.0/24
- 89.187.74.0/23
- 89.187.76.0/24
- 89.187.78.0/23
- 89.187.80.0/21
- 89.187.88.0/22
- 89.187.92.0/24
- 89.187.94.0/23
- 91.92.4.0/24
- 91.216.42.0/24
- 109.70.136.0/21
- 185.81.16.0/22
- 185.135.245.0/24
- 193.26.222.0/24
- 2a01:c0::/32
- 2a05:8440::/29
Upstreams and peers 1
The networks RIPE RIS sees next to AS31708 in BGP paths, the most visible first.
Peering
Peering policy: Open. Suggested max-prefix limits: 100 IPv4, 50 IPv6. PeeringDB record
| Exchange | Ports | Speed | Route server |
|---|---|---|---|
| LINX LON1: Main | 1 | 10G | No |
| Facility | City | Country |
|---|---|---|
| COLT DC London | London | GB |
| Equinix LD8 - London, Docklands | London | GB |
| Telehouse - London (Docklands East) | London | GB |
| VIRTUS LONDON1 (Enfield) | London | GB |
More about AS31708
Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-15 08:06 UTC. The country is where the AS number was registered, not necessarily where the network operates.