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Autonomous System

AS31655

Gamma Telecom Holdings Ltd

Announced IPs
609,536
CIDR prefixes
29
ASN
AS31655

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

70/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 500-1000Gbps
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS-GAMMATELECOM

Present at 4 internet exchanges: LINX LON2, LINX LON1: Main, LINX Manchester, LONAP: LON0

AS31655 — global IP footprint

Cities where AS31655 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
51.52.0.0/16 65.5K
0.8%
Gamma Telecom Holdings Ltd GB England Hounslow
51.219.0.0/16 65.5K
0.6%
Gamma Telecom Holdings Ltd GB England Shaftesbury
79.74.0.0/16 65.5K
0.0%
Gamma Telecom Holdings Ltd GB England Huddersfield
92.207.0.0/16 65.5K
0.8%
Gamma Telecom Holdings Ltd GB England Stockport
157.125.0.0/16 65.5K
0.1%
Gamma Telecom Holdings Ltd GB England Islington
157.231.0.0/16 65.5K
0.4%
Gamma Telecom Holdings Ltd GB England City of Westminster
62.223.128.0/17 32.8K
0.0%
Gamma Telecom Holdings Ltd GB England Stockport
138.248.128.0/17 32.8K
0.4%
Gamma Telecom Holdings Ltd GB England Islington
151.2.128.0/17 32.8K
0.0%
Gamma Telecom Holdings Ltd GB England Camden
164.39.128.0/17 32.8K
1.8%
Gamma Telecom Holdings Ltd GB England City of Westminster
88.215.0.0/18 16.4K
2.5%
Gamma Telecom Holdings Ltd GB England Leicester
188.66.64.0/18 16.4K
3.8%
Gamma Telecom Holdings Ltd GB England Nottingham
5.2.96.0/19 8.2K
2.4%
Gamma Telecom Holdings Ltd GB England Bury
195.162.96.0/19 8.2K
1.5%
Gamma Telecom Holdings Ltd GB England Camden
80.252.64.0/20 4.1K
2.2%
Gamma Telecom Holdings Ltd GB England Cannock
89.213.16.0/20 4.1K
2.6%
Gamma Telecom Holdings Ltd GB England Waltham Cross
138.248.16.0/20 4.1K
0.5%
Gamma Telecom Holdings Ltd GB
138.248.32.0/20 4.1K
0.0%
Gamma Telecom Holdings Ltd GB
193.39.16.0/20 4.1K
0.0%
Gamma Telecom Holdings Ltd GB England Gillingham
213.218.192.0/20 4.1K
0.5%
Gamma Telecom Holdings Ltd GB England Streatham
46.227.48.0/21 2.0K
2.8%
Gamma Telecom Holdings Ltd GB England Wandsworth
89.213.8.0/21 2.0K
4.8%
Gamma Telecom Holdings Ltd GB England Birmingham
89.213.32.0/21 2.0K
1.8%
Gamma Telecom Holdings Ltd GB England Kensington
5.144.156.0/22 1.0K
0.0%
Gamma Telecom Holdings Ltd GB England Sunbury-on-Thames
185.4.196.0/22 1.0K
0.1%
Gamma Telecom Holdings Ltd GB England Matlock
185.9.232.0/22 1.0K
0.7%
Gamma Telecom Holdings Ltd GB England High Wycombe
185.21.208.0/22 1.0K
1.5%
Gamma Telecom Holdings Ltd GB England Stoke-on-Trent
185.47.104.0/22 1.0K
1.5%
Gamma Telecom Holdings Ltd GB England Southall
185.157.103.0/24 256
0.0%
Gamma Telecom Holdings Ltd DE

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS31655 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
62.223.251.0/24 21,087 2026-09-10 15:07:25
185.157.103.0/24 11,947 2026-09-10 17:59:58
5.144.156.0/22 11,575 2026-09-10 18:00:10
5.2.96.0/19 11,567 2026-09-10 17:59:44
62.223.128.0/17 11,411 2026-09-10 17:59:58
89.213.8.0/21 11,411 2026-09-10 17:59:16
51.219.0.0/16 11,371 2026-09-10 17:59:44
89.213.16.0/20 11,323 2026-09-10 17:59:29
89.213.32.0/21 11,301 2026-09-10 17:59:31
46.227.48.0/21 11,250 2026-09-10 17:59:47
92.207.0.0/16 11,241 2026-09-10 17:59:44
79.74.0.0/16 11,223 2026-09-10 17:59:44
80.252.64.0/20 11,222 2026-09-10 18:00:10
185.9.232.0/22 11,210 2026-09-10 17:59:44
138.248.32.0/20 11,206 2026-09-10 17:59:40
51.52.0.0/16 11,194 2026-09-10 18:00:10
193.39.16.0/20 11,186 2026-09-10 17:59:42
185.47.104.0/22 11,181 2026-09-10 17:59:44
88.215.0.0/18 11,161 2026-09-10 17:59:16
151.2.140.0/22 11,088 2026-09-10 17:59:27
185.21.208.0/22 11,072 2026-09-10 17:59:40
213.218.192.0/20 11,071 2026-09-10 17:59:47
151.2.136.0/22 11,065 2026-09-10 17:59:27
188.66.64.0/18 11,053 2026-09-10 18:00:10
185.4.196.0/22 11,046 2026-09-10 17:59:44
151.2.128.0/17 11,018 2026-09-10 17:59:29
138.248.128.0/17 11,012 2026-09-10 18:00:10
138.248.16.0/20 11,000 2026-09-10 17:59:47
195.162.96.0/19 10,999 2026-09-10 17:59:31
151.2.128.0/22 10,997 2026-09-10 17:59:29
164.39.128.0/17 10,980 2026-09-10 17:59:58
157.231.0.0/16 10,976 2026-09-10 17:59:15
151.2.132.0/22 10,956 2026-09-10 17:59:27
157.125.0.0/16 10,940 2026-09-10 17:59:44
51.52.50.0/24 10,405 2026-09-10 17:59:58
138.248.140.0/24 9,823 2026-09-10 18:00:10

Frequently Asked Questions

What is AS31655?

AS31655 is an Autonomous System Number assigned to Gamma Telecom Holdings Ltd. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS31655 announce?

AS31655 announces 609.5K IPv4 addresses distributed across 29 routed CIDR prefixes. The network is registered in United Kingdom.

Who operates AS31655?

AS31655 is operated by Gamma Telecom Holdings Ltd. The organization is based in United Kingdom. You can view all IP ranges and related ASNs on the organization page.

What country is AS31655 registered in?

AS31655 is registered in United Kingdom. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-10 18:11:07 UTC
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