AS31655

Summary

Country	United Kingdom
Organization	Gamma Telecom Holdings LTD
Domain	gamma.co.uk
Number of IPv4	679,936
Number of IPv6	1.9807× 1030
AS Type	ISP
Registry	RIPE NCC
Allocated	July 02, 2004 (about 21 years ago)
Updated	September 15, 2025 (about 1 months ago)

IP Ranges

AS31655 announces 37 IPv4 ranges and 4 IPv6 ranges.

That's a total of 679,936 IPv4 addresses and 1.9807× 10³⁰ IPv6 addresses.

Prefix	Organization	Size	Registry	Status
5.2.96.0/19	Gamma Telecom Dsl Services	8,192	RIPE NCC	ASSIGNED PA
5.144.156.0/22	Carr's Group PLC Sold by Gamma Business Communications LTD	1,024	RIPE NCC	ASSIGNED PA
46.227.48.0/21	VARIDION	2,048	RIPE NCC	ASSIGNED PA
51.52.0.0/16	Gamma Ces Infrastructure	65,536	RIPE NCC	LEGACY
51.52.50.0/24	Gamma Telecom Limited	256	RIPE NCC	LEGACY
51.219.0.0/16	Gamma Dsl Infrastructure	65,536	RIPE NCC	LEGACY
62.223.0.0/16	Gamma Telecom Holdings LTD	65,536	RIPE NCC	ALLOCATED PA
62.223.128.0/17	Gamma Telecom Holdings LTD	32,768	RIPE NCC	ALLOCATED PA
79.74.0.0/16	Gamma Telecom Limited	65,536	RIPE NCC	ALLOCATED PA
80.252.64.0/20	Gamma Telecom Dsl Services	4,096	RIPE NCC	ASSIGNED PA
83.245.6.0/24	Gamma Telecom	256	RIPE NCC	ASSIGNED PA
88.215.0.0/18	Gamma Telecom Dsl Services	16,384	RIPE NCC	ASSIGNED PA
89.213.8.0/21	Gamma Telecom Dsl Services	2,048	RIPE NCC	ASSIGNED PA
89.213.16.0/20	Gamma Telecom Holdings LTD	4,096	RIPE NCC	ALLOCATED PA
89.213.32.0/21	GAMMA-DSL	2,048	RIPE NCC	ASSIGNED PA
92.207.0.0/16	Gamma Mobilty	65,536	RIPE NCC	ASSIGNED PA
138.248.16.0/20	Gamma Telecom Limited	4,096	RIPE NCC	LEGACY
138.248.32.0/20	Gamma Telecom Limited	4,096	RIPE NCC	LEGACY
138.248.128.0/17	Gamma Telecom Limited	32,768	RIPE NCC	LEGACY
138.248.140.0/24	Gamma Telecom Limited	256	RIPE NCC	LEGACY
151.2.128.0/22	Gamma Telecom Limited	1,024	RIPE NCC	ALLOCATED PA
151.2.128.0/17	Gamma Telecom Limited	32,768	RIPE NCC	ALLOCATED PA
151.2.132.0/22	Gamma Telecom Limited	1,024	RIPE NCC	ALLOCATED PA
151.2.136.0/22	Gamma Telecom Limited	1,024	RIPE NCC	ALLOCATED PA
151.2.140.0/22	Gamma Telecom Limited	1,024	RIPE NCC	ALLOCATED PA
157.125.0.0/16	Gamma Telecom Limited	65,536	RIPE NCC	LEGACY
157.231.0.0/16	Gamma Dsl Infrastructure	65,536	RIPE NCC	LEGACY
164.39.128.0/17	Gamma Dsl Infrastructure	32,768	RIPE NCC	LEGACY
185.4.196.0/22	Gamma Ces Infrastructure	1,024	RIPE NCC	ASSIGNED PA
185.9.232.0/22	Gamma Business Communications Limited	1,024	RIPE NCC	ASSIGNED PA
185.21.208.0/22	Gamma Telecom Dsl Services	1,024	RIPE NCC	ASSIGNED PA
185.47.104.0/22	Gamma Network Solution Limited	1,024	RIPE NCC	ALLOCATED PA
185.157.103.0/24	Aldi South UK Ipv4	256	RIPE NCC	ASSIGNED PA
188.66.64.0/18	Gamma Telecom	16,384	RIPE NCC	ASSIGNED PA
193.39.16.0/20	The Guinness Partnership	4,096	RIPE NCC	ASSIGNED PI
195.162.96.0/19	Gamma Dsl Infrastructure	8,192	RIPE NCC	ASSIGNED PA
213.218.192.0/20	Gamma Telecom Holdings LTD	4,096	RIPE NCC	ALLOCATED PA

Prefix	Organization	Size	Registry	Status
2a02:c1c0::/29	Gamma Telecom Holdings LTD	6.3383× 1029	RIPE NCC	ALLOCATED-BY-RIR
2a02:df80::/29	Gamma Business Communications Limited	6.3383× 1029	RIPE NCC	ALLOCATED-BY-RIR
2a03:15c0::/32	Gamma Network Solution Limited	7.9228× 1028	RIPE NCC	ALLOCATED-BY-RIR
2a04:4440::/29	Gamma Telecom Limited	6.3383× 1029	RIPE NCC	ALLOCATED-BY-RIR

Peers

AS31655 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.

Upstreams

AS31655 connects to the global Internet via at least 2 upstream providers. In this setup, AS31655 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.

Downstreams

AS31655 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS31655's role in extending Internet access beyond its own infrastructure.