Autonomous System details

AS31655

Gamma Telecom Holdings Ltd  ·  gamma.co.uk

United Kingdom

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AS31655 – Gamma Telecom Holdings Ltd

Field Value
Country United Kingdom
Website gamma.co.uk
Hosted domains 2,853
IPv4 addresses 609,536
IPv6 addresses 1,901,475,900,342,344,102,245,054,808,064
ASN type ISP
Registry ripe
Allocated 22 years ago on Jul 02, 2004
Updated 2 months ago on Dec 02, 2025

IP Ranges

Netblock Company Num of IPs
51.52.0.0/16 Gamma Telecom Limited 65,536
51.219.0.0/16 Gamma Telecom Limited 65,536
79.74.0.0/16 Gamma Telecom Limited 65,536
92.207.0.0/16 Gamma Telecom Limited 65,536
157.125.0.0/16 Gamma Telecom Limited 65,536
157.231.0.0/16 Gamma Telecom Limited 65,536
62.223.128.0/17 Gamma Telecom Holdings Ltd 32,768
138.248.128.0/17 Gamma Telecom Limited 32,768
151.2.128.0/17 Gamma Telecom Limited 32,768
164.39.128.0/17 Gamma Telecom Limited 32,768
88.215.0.0/18 Gamma Telecom Holdings Ltd 16,384
188.66.64.0/18 Gamma Telecom Holdings Ltd 16,384
5.2.96.0/19 Gamma Telecom Holdings Ltd 8,192
195.162.96.0/19 Gamma Telecom Holdings Ltd 8,192
80.252.64.0/20 Gamma Telecom Holdings Ltd 4,096
89.213.16.0/20 Gamma Telecom DSL Services 4,096
138.248.16.0/20 Gamma Telecom Limited 4,096
138.248.32.0/20 Gamma Telecom Limited 4,096
193.39.16.0/20 The Guinness Partnership 4,096
213.218.192.0/20 Gamma Telecom Holdings Ltd 4,096
46.227.48.0/21 Gamma Network Solution Limited 2,048
89.213.8.0/21 Gamma Telecom DSL Services 2,048
89.213.32.0/21 Gamma Telecom Holdings Ltd 2,048
5.144.156.0/22 Gamma Telecom Holdings Ltd 1,024
151.2.128.0/22 Gamma Telecom Limited 1,024
151.2.132.0/22 Gamma Telecom Limited 1,024
151.2.136.0/22 Gamma Telecom Limited 1,024
151.2.140.0/22 Gamma Telecom Limited 1,024
185.4.196.0/22 Gamma Telecom Holdings Ltd 1,024
185.9.232.0/22 Gamma Business Communications Limited 1,024
185.21.208.0/22 Gamma Telecom Holdings Ltd 1,024
185.47.104.0/22 Gamma Network Solution Limited 1,024
51.52.50.0/24 Gamma Telecom Limited 256
62.223.251.0/24 Gamma Telecom Holdings Ltd 256
138.248.140.0/24 Gamma Telecom Limited 256
185.157.103.0/24 ALDI International Services SE & Co. oHG 256

Netblock Company
2a02:c1c0::/29 Gamma Telecom Holdings Ltd
2a02:df80::/29 Gamma Business Communications Limited
2a04:4440::/29 Gamma Telecom Limited
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WHOIS Details

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                                                ASHandle:       AS31655
                                                OrgID:          AS31655
                                                ASName:         AS31655
                                                ASNumber:       AS31655
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 2,853 domain names hosted across 673 IP addresses on this ASN.

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IP Address Domain Domains on this IP
157.231.167.30 ██████████ 1,064
5.2.118.138 ██████████ 448
157.231.167.38 ██████████ 173
157.231.167.31 ██████████ 135
157.231.167.36 ██████████ 95
157.231.167.37 ██████████ 95
157.231.167.35 ██████████ 63
157.231.167.34 ██████████ 55
51.52.252.228 ██████████ 48
92.207.184.78 ██████████ 23

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Peers

There are 43 peers for this ASN.

Peers Name
AS13030 Init7 (Switzerland) Ltd.
AS14630 Invesco Group Services, Inc.
AS15692 Razorblue Ltd
AS15802 Emirates Integrated Telecommunications Company PJSC
AS18106 Viewqwest Pte Ltd
AS198472 Manchester City Council
AS204193 Gamma Telecom Holdings Ltd
AS205237 SAVILLS PLC
AS2119 Telenor Norge AS
AS216167 Gamma Telecom Holdings Ltd
AS24482 SG.GS
AS25160 Vorboss Limited
AS25369 Hydra Communications Ltd
AS28792 Public Internet Ltd
AS2914 NTT America, Inc.
AS3170 VeloxServ Communications Ltd
AS31742 Sotaconnect Network
AS32590 Valve Corporation
AS3356 Level 3 Parent, LLC
AS35266 EX Networks Limited
AS35280 F5 Networks SARL
AS36236 NetActuate, Inc
AS39351 31173 Services AB
AS41553 Reed Specialist Recruitment Limited
AS41811 CONVERGENCE (GROUP NETWORKS) LIMITED
AS4455 IX Reach Ltd
AS4637 Telstra Global
AS48070 DSM (GB) Limited
AS49544 i3D.net B.V
AS49600 NEAR IP, S.L.
AS50300 CustodianDC Limited
AS51185 MainStreaming SpA
AS5413 Wavenet Limited
AS61049 Exascale Ltd
AS6908 Datahop - Six Degrees
AS6939 Hurricane Electric LLC
AS8220 COLT Technology Services Group Limited
AS8426 ClaraNET LTD
AS8455 atom86 BV
AS8918 Coolwave Communications Limited
AS8943 Jump Networks Ltd
AS8966 EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC
AS9009 M247 Europe SRL
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ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS2914 NTT America, Inc.
AS3356 Level 3 Parent, LLC
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ASN API & Database

Downstreams

There are 6 downstreams for this ASN.

Downstreams Name
AS198472 Manchester City Council
AS204193 Gamma Telecom Holdings Ltd
AS205237 SAVILLS PLC
AS216167 Gamma Telecom Holdings Ltd
AS41553 Reed Specialist Recruitment Limited
AS8918 Coolwave Communications Limited
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ASN API & Database

Pingable IPs

1,902 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
51.52.234.229 AS31655 Gamma Telecom Holdings Ltd 2.92ms from Erith, GB
157.125.33.23 AS31655 Gamma Telecom Holdings Ltd 3.33ms from Erith, GB
195.162.117.241 AS31655 Gamma Telecom Holdings Ltd 3.51ms from London, GB
51.52.82.96 AS31655 Gamma Telecom Holdings Ltd 3.14ms from London, GB
138.248.139.172 AS31655 Gamma Telecom Holdings Ltd 3.29ms from London, GB
188.66.107.65 AS31655 Gamma Telecom Holdings Ltd 5.11ms from London, GB
92.207.88.206 AS31655 Gamma Telecom Holdings Ltd 3.83ms from London, GB
92.207.162.61 AS31655 Gamma Telecom Holdings Ltd 0.87ms from London, GB
51.219.138.70 AS31655 Gamma Telecom Holdings Ltd 4.70ms from London, GB
138.248.217.217 AS31655 Gamma Telecom Holdings Ltd 2.16ms from London, GB
92.207.106.46 AS31655 Gamma Telecom Holdings Ltd 3.65ms from London, GB
164.39.228.142 AS31655 Gamma Telecom Holdings Ltd 6.09ms from London, GB
51.52.197.89 AS31655 Gamma Telecom Holdings Ltd 3.75ms from London, GB
151.2.215.122 AS31655 Gamma Telecom Holdings Ltd 4.81ms from London, GB
157.231.176.50 AS31655 Gamma Telecom Holdings Ltd 0.56ms from London, GB
157.231.110.187 AS31655 Gamma Telecom Holdings Ltd 0.78ms from London, GB
164.39.201.43 AS31655 Gamma Telecom Holdings Ltd 6.49ms from London, GB
51.219.21.130 AS31655 Gamma Telecom Holdings Ltd 6.15ms from London, GB
157.125.56.143 AS31655 Gamma Telecom Holdings Ltd 2.53ms from London, GB
51.52.18.129 AS31655 Gamma Telecom Holdings Ltd 0.53ms from London, GB
51.52.58.91 AS31655 Gamma Telecom Holdings Ltd 21.10ms from London, GB
157.125.220.133 AS31655 Gamma Telecom Holdings Ltd 1.23ms from London, GB
157.125.153.37 AS31655 Gamma Telecom Holdings Ltd 0.44ms from London, GB
51.219.91.22 AS31655 Gamma Telecom Holdings Ltd 0.54ms from London, GB
51.52.254.249 AS31655 Gamma Telecom Holdings Ltd 1.93ms from London, GB

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
81.205.87.7 AS1136 KPN B.V. 2.94ms from Amsterdam, NL
216.116.198.135 AS6943 Information Technology Systems, Inc. 1.00ms from Boston, US
189.6.57.23 AS28573 Claro NXT Telecomunicacoes Ltda 7.05ms from Brasilia, BR
104.155.207.119 AS396982 Google LLC 0.15ms from Chang-hua, TW
183.60.191.71 AS4134 CHINANET-BACKBONE 2.70ms from Guangzhou, CN
154.213.121.247 AS132839 POWER LINE DATACENTER 1.04ms from Hong Kong, HK
188.30.113.39 AS206067 Hutchison 3G UK Limited 15.66ms from London, GB
94.165.38.183 AS1267 WIND TRE S.P.A. 11.87ms from Milan, IT
221.6.170.183 AS4837 CHINA UNICOM China169 Backbone 4.65ms from Nanjing, CN
117.183.94.231 AS9808 China Mobile Communications Group Co., Ltd. 6.55ms from Nanning, CN
60.212.215.23 AS4837 CHINA UNICOM China169 Backbone 4.43ms from Qingdao, CN
115.5.172.103 AS4766 Korea Telecom 1.55ms from Seoul, KR
139.196.170.55 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 3.43ms from Shanghai, CN
218.212.175.135 AS55430 Starhub Ltd 2.09ms from Singapore, SG
219.123.1.167 AS17506 ARTERIA Networks Corporation 1.07ms from Tokyo, JP
52.83.144.71 AS135629 Ningxia West Cloud Data Technology Co.Ltd. 0.47ms from Zhongwei, CN
64.50.129.7 AS3257 GTT Communications Inc. 0.59ms from Ashburn, US
205.234.183.103 AS23352 DEFT.COM 0.55ms from Chicago, US
13.78.179.215 AS8075 Microsoft Corporation 3.43ms from Denver, US
39.124.170.247 AS9318 SK Broadband Co Ltd 4.81ms from Incheon, KR
174.140.4.7 AS25019 Saudi Telecom Company JSC 2.87ms from Jeddah, SA
82.69.31.23 AS13037 Zen Internet Ltd 1.51ms from Manchester, GB
178.125.254.183 AS6697 Republican Unitary Telecommunication Enterprise Beltelecom 1.70ms from Minsk, BY
218.163.24.55 AS3462 Data Communication Business Group 4.00ms from Taichung, TW
110.174.57.39 AS7545 TPG Telecom Limited 1.63ms from Brisbane, AU

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f2 -m6 79.74.102.0
traceroute to 79.74.102.0 (79.74.102.0): 6 hops max, 52 byte packets
3 [AS42831] 5.101.143.16 4.242 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Coventry, GB
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS31655 at robtex.

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