AS31655 Gamma
AS31655 is operated by Gamma and registered with RIPE NCC (GB) since 2004-07-02.
It announces 36 IPv4 and 3 IPv6 prefixes, 94% of them RPKI valid.
RIPE RIS sees 14 upstream and peer networks and 6 downstream networks next to it.
PeeringDB lists it as a Cable/DSL/ISP network at 4 internet exchanges and 9 facilities. Its peering policy is open.
| Name | Gamma |
|---|---|
| Registry (RIR) | RIPE NCC |
| Country | United Kingdom (GB) |
| Delegated on | 2004-07-02 |
| Network type | Cable/DSL/ISP, Regional |
| Peering policy | Open |
| IRR as-set | AS-GAMMATELECOM |
| Prefixes (IPv4 / IPv6) | 36 / 3 |
| RPKI valid | 94% (37 / 39) |
| Upstreams and peers | 14 |
| Downstream networks | 6 |
| Website | gamma.co.uk |
Routing health
- AS31655 announces 36 IPv4 and 3 IPv6 prefixes.
- 37 of 39 announced prefixes are RPKI valid.
- 2 announced prefixes are not covered by a ROA of AS31655 (they may have none, or another network’s).
- 14 upstreams and peers, 6 downstream networks seen.
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 39
- 5.2.96.0/19
- 5.144.156.0/22
- 46.227.48.0/21
- 51.52.0.0/16
- 51.52.50.0/24
- 51.219.0.0/16
- 62.223.128.0/17
- 62.223.251.0/24
- 79.74.0.0/16
- 80.252.64.0/20
- 88.215.0.0/18
- 89.213.8.0/21
- 89.213.16.0/20
- 89.213.32.0/21
- 92.207.0.0/16
- 138.248.16.0/20
- 138.248.32.0/20
- 138.248.128.0/17
- 138.248.140.0/24
- 151.2.128.0/17
- 151.2.128.0/22
- 151.2.132.0/22
- 151.2.136.0/22
- 151.2.140.0/22
- 157.125.0.0/16
- 157.231.0.0/16
- 164.39.128.0/17
- 185.4.196.0/22
- 185.9.232.0/22
- 185.21.208.0/22
- 185.47.104.0/22
- 185.157.103.0/24
- 188.66.64.0/18
- 193.39.16.0/20
- 195.162.96.0/19
- 213.218.192.0/20
- 2a02:c1c0::/29
- 2a02:df80::/29
- 2a04:4440::/29
Upstreams and peers 14
The networks RIPE RIS sees next to AS31655 in BGP paths, the most visible first.
Peering
Peering policy: Open. Suggested max-prefix limits: 50 IPv4, 3 IPv6. PeeringDB record
| Exchange | Ports | Speed | Route server |
|---|---|---|---|
| LINX LON1: Main | 2 | 200G | No |
| LINX LON2 | 2 | 40G | No |
| LINX Manchester | 2 | 40G | No |
| LONAP: LON0 | 2 | 200G | No |
| Facility | City | Country |
|---|---|---|
| Equinix LD5 - London, Slough | Slough | GB |
| Equinix LD6 - London, Slough | Slough | GB |
| Equinix LD8 - London, Docklands | London | GB |
| Equinix LD9 - London, Powergate | London | GB |
| Equinix MA1 - Manchester, Williams/Kilburn | Manchester | GB |
| Equinix MA3 - Manchester, Joule House | Manchester | GB |
| Redcentric London Data Centre | London | GB |
| Telehouse - London (Docklands East) | London | GB |
| Telehouse - London (Docklands North) | London | GB |
More about AS31655
Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 15:04 UTC. The country is where the AS number was registered, not necessarily where the network operates.