AS number 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 2,942
Number of IPv4 578,048
Number of IPv6 1,901,475,900,342,344,102,245,054,808,064
ASN type ISP
Registry ripe
Allocated 21 years ago on Jul 02, 2004
Updated 7 days ago on Sep 15, 2025

IP Ranges

Netblock Company Num of IPs
157.125.0.0/16 Gamma Telecom Limited 65,536
157.231.0.0/16 Gamma Telecom Limited 65,536
51.219.0.0/16 Gamma Telecom Limited 65,536
51.52.0.0/16 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
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
188.66.64.0/18 Gamma Telecom Holdings Ltd 16,384
88.215.0.0/18 Gamma Telecom Holdings Ltd 16,384
195.162.96.0/19 Gamma Telecom Holdings Ltd 8,192
5.2.96.0/19 Gamma Telecom Holdings Ltd 8,192
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
80.252.64.0/20 Gamma Telecom Holdings Ltd 4,096
89.213.16.0/20 Gamma Telecom DSL Services 4,096
46.227.48.0/21 Gamma Network Solution Limited 2,048
89.213.32.0/21 Gamma Telecom Holdings Ltd 2,048
89.213.8.0/21 Gamma Telecom DSL Services 2,048
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
185.21.208.0/22 Gamma Telecom Holdings Ltd 1,024
185.4.196.0/22 Gamma Telecom Holdings Ltd 1,024
185.47.104.0/22 Gamma Network Solution Limited 1,024
185.60.220.0/22 Building Research Establishment Limited 1,024
185.9.232.0/22 Gamma Business Communications Limited 1,024
5.144.156.0/22 Gamma Telecom Holdings Ltd 1,024
138.248.140.0/24 Gamma Telecom Limited 256
185.157.103.0/24 ALDI International Services SE & Co. oHG 256
51.52.50.0/24 Gamma Telecom Limited 256
83.245.6.0/24 Gamma Telecom 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 2,942 domain names hosted across 675 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 ██████████ 160
157.231.167.31 ██████████ 138
157.231.167.37 ██████████ 107
157.231.167.36 ██████████ 87
138.248.189.3 ██████████ 66
157.231.167.35 ██████████ 63
157.231.167.34 ██████████ 62
51.52.252.228 ██████████ 57

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Peers

There are 39 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
AS205237 SAVILLS PLC
AS2119 Telenor Norge AS
AS24482 SG.GS
AS25160 Vorboss Limited
AS25369 Hydra Communications Ltd
AS2603 NORDUnet
AS28792 Public Internet Ltd
AS2914 NTT America, Inc.
AS3170 VeloxServ Communications Ltd
AS31742 Sotaconnect Network
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
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
AS8943 Jump Networks Ltd
AS8966 EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC
AS9009 M247 Europe SRL
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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 ASN Database Download

Downstreams

There are 3 downstreams for this ASN.

Downstreams Name
AS198472 Manchester City Council
AS205237 SAVILLS PLC
AS41553 Reed Specialist Recruitment Limited
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ASN API ASN Database Download

Pingable IPs

1,876 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
88.215.22.103 AS31655 Gamma Telecom Holdings Ltd 3.11ms from London, GB
164.39.231.165 AS31655 Gamma Telecom Holdings Ltd 7.30ms from London, GB
51.219.163.204 AS31655 Gamma Telecom Holdings Ltd 3.34ms from London, GB
157.125.129.219 AS31655 Gamma Telecom Holdings Ltd 2.49ms from London, GB
92.207.24.73 AS31655 Gamma Telecom Holdings Ltd 3.38ms from London, GB
51.52.249.144 AS31655 Gamma Telecom Holdings Ltd 0.47ms from London, GB
51.219.160.10 AS31655 Gamma Telecom Holdings Ltd 6.34ms from London, GB
51.52.120.112 AS31655 Gamma Telecom Holdings Ltd 2.69ms from London, GB
157.125.211.135 AS31655 Gamma Telecom Holdings Ltd 1.55ms from London, GB
157.125.16.205 AS31655 Gamma Telecom Holdings Ltd 3.35ms from London, GB
138.248.223.185 AS31655 Gamma Telecom Holdings Ltd 0.90ms from London, GB
164.39.132.90 AS31655 Gamma Telecom Holdings Ltd 6.54ms from London, GB
157.231.241.201 AS31655 Gamma Telecom Holdings Ltd 1.14ms from London, GB
157.125.5.226 AS31655 Gamma Telecom Holdings Ltd 23.21ms from London, GB
157.231.83.160 AS31655 Gamma Telecom Holdings Ltd 0.54ms from London, GB
157.231.73.231 AS31655 Gamma Telecom Holdings Ltd 0.60ms from London, GB
89.213.18.202 AS31655 Gamma Telecom Holdings Ltd 6.08ms from London, GB
157.231.201.63 AS31655 Gamma Telecom Holdings Ltd 3.23ms from London, GB
157.231.23.206 AS31655 Gamma Telecom Holdings Ltd 7.18ms from London, GB
157.231.143.249 AS31655 Gamma Telecom Holdings Ltd 0.98ms from London, GB
51.52.225.189 AS31655 Gamma Telecom Holdings Ltd 3.07ms from London, GB
51.52.94.43 AS31655 Gamma Telecom Holdings Ltd 4.12ms from London, GB
51.219.159.105 AS31655 Gamma Telecom Holdings Ltd 5.00ms from London, GB
5.2.117.22 AS31655 Gamma Telecom Holdings Ltd 0.52ms from London, GB
164.39.165.169 AS31655 Gamma Telecom Holdings Ltd 0.82ms 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
146.50.122.87 AS1124 Universiteit van Amsterdam 4.55ms from Amsterdam, NL
195.219.164.167 AS6453 TATA COMMUNICATIONS (AMERICA) INC 0.52ms from Barcelona, ES
162.207.221.135 AS7018 AT&T Enterprises, LLC 8.38ms from Dallas, US
3.121.0.151 AS16509 Amazon.com, Inc. 0.13ms from Frankfurt am Main, DE
183.2.195.135 AS4134 CHINANET-BACKBONE 3.32ms from Guangzhou, CN
200.124.164.7 AS270277 Nexus Telecom 3.03ms from Joao Pessoa, BR
109.71.47.23 AS24768 ALMOUROLTEC SERVICOS DE INFORMATICA E INTERNET LDA 0.35ms from Lisbon, PT
47.179.45.39 AS5650 Frontier Communications of America, Inc. 0.46ms from Los Angeles, US
112.205.150.183 AS9299 Philippine Long Distance Telephone Company 0.86ms from Manila, PH
187.103.242.103 AS28283 Adylnet Telecom 2.44ms from Porto Alegre, BR
1.236.148.55 AS9318 SK Broadband Co Ltd 1.91ms from Seoul, KR
31.211.194.199 AS33885 Telenor Sverige AB 0.67ms from Stockholm, SE
71.90.238.151 AS20115 Charter Communications LLC 10.99ms from Atlanta, US
49.204.73.39 AS24309 Atria Convergence Technologies Pvt. Ltd. Broadband Internet Service Provider INDIA 0.87ms from Bengaluru, IN
77.183.206.199 AS6805 Telefonica Germany GmbH & Co.OHG 4.11ms from Berlin, DE
3.160.250.247 AS16509 Amazon.com, Inc. 0.31ms from Bucharest, RO
84.60.208.103 AS3209 Vodafone GmbH 8.58ms from Duesseldorf, DE
62.224.211.183 AS3320 Deutsche Telekom AG 8.24ms from Frankfurt am Main, DE
5.249.66.215 AS12353 Vodafone Portugal 6.57ms from Lisbon, PT
109.154.49.23 AS2856 British Telecommunications PLC 1.78ms from London, GB
172.235.154.119 AS63949 Akamai Connected Cloud 0.58ms from Miami, US
110.72.231.167 AS4837 CHINA UNICOM China169 Backbone 9.74ms from Nanning, CN
179.89.223.199 AS26599 TELEFÔNICA BRASIL S.A 9.27ms from Novo Hamburgo, BR
54.162.98.71 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
76.211.176.87 AS7018 AT&T Enterprises, LLC 4.54ms from San Antonio, US

Traceroute

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

$
traceroute -a -n -q1 -f4 -m8 79.74.153.23
traceroute to 79.74.153.23 (79.74.153.23): 8 hops max, 52 byte packets
4 [AS30475] 68.71.128.64 0.341 ms
5 [AS30475] 68.71.128.70 0.795 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Greenwood Village, US
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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