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ASN Details

AS2856

United Kingdom · bt.com

Summary

Country

United Kingdom

Website

bt.com

Hosted domains

29,386

Number of IPv4

12,749,312

Number of IPv6

10,141,209,637,529,113,670,490,324,467,712

ASN type

ISP

Registry

ripe

Allocated

23 years ago on Aug 30, 2002

Updated

a month ago on May 15, 2025

Included IP range

IP RangeCompanyNum of IPs
86.128.0.0/10British Telecommunications PLC4,194,304
81.128.0.0/11British Telecommunications PLC2,097,152
86.128.0.0/11BT Infrastructure Layer2,097,152
109.144.0.0/12British Telecommunications PLC1,048,576
217.32.0.0/12British Telecommunications PLC1,048,576
81.128.0.0/12BT Infrastructure Layer1,048,576
86.128.0.0/12IP pools1,048,576
31.48.0.0/13British Telecommunications PLC524,288
95.144.0.0/13EE Limited524,288
147.148.0.0/14British Telecommunications plc262,144
194.72.0.0/14British Telecommunications PLC262,144
213.120.0.0/14PROVIDER Local Internet Registry262,144
31.112.0.0/14EE Limited262,144
109.180.0.0/15EE Limited131,072
31.126.0.0/15BT Retail131,072
31.90.0.0/15EE Limited131,072
31.92.0.0/15EE Limited131,072
5.80.0.0/15British Telecommunications PLC131,072
132.146.0.0/16British Telecom65,536
147.152.0.0/16British Telecommunications plc65,536
165.120.0.0/16BT Public Internet Service65,536
193.113.0.0/16British Telecommunications PLC65,536
195.171.0.0/16British Telecommunications PLC65,536
195.99.0.0/16British Telecommunications PLC65,536
212.140.0.0/16British Telecommunications PLC65,536
213.1.0.0/16British Telecommunications PLC65,536
31.104.0.0/16BT-CENTRAL-PLUS65,536
31.117.0.0/16EE Limited65,536
31.118.0.0/16EE Limited65,536
31.119.0.0/16BTnet Assignments65,536
31.120.0.0/16EE Limited65,536
31.121.0.0/16BTnet Assignments65,536
31.94.0.0/16EE Limited65,536
31.96.0.0/16EE Limited65,536
51.14.0.0/16BT-CENTRAL-PLUS65,536
5.81.0.0/16BT Infrastructure Layer65,536
62.172.0.0/16British Telecommunications PLC65,536
62.239.0.0/16British Telecommunications PLC65,536
62.6.0.0/16BT Infrastructure Layer65,536
62.7.0.0/16BT Infrastructure Layer65,536
144.87.128.0/18Royal Mail Group Limited16,384
159.180.96.0/19BT-CENTRAL-PLUS8,192
193.38.192.0/19Co-operative Group Limited8,192
194.102.0.0/19British Telecommunications PLC8,192
195.218.32.0/19British Telecommunications PLC8,192
212.82.0.0/19British Telecommunications PLC8,192
84.23.0.0/19i3 Digital Ltd8,192
144.87.16.0/20Royal Mail Group Limited4,096
193.37.160.0/20British Telecommunications PLC4,096
213.205.208.0/20Orange PCS GPRS Services4,096
217.15.64.0/20British Telecommunications PLC4,096
51.230.0.0/20Department for Work and Pensions4,096
51.230.112.0/20Department for Work and Pensions4,096
51.230.16.0/20Department for Work and Pensions4,096
51.230.32.0/20Department for Work and Pensions4,096
51.230.48.0/20Department for Work and Pensions4,096
51.230.64.0/20Department for Work and Pensions4,096
51.230.80.0/20Department for Work and Pensions4,096
51.230.96.0/20Department for Work and Pensions4,096
85.88.224.0/20The Cloud Simplified Limited4,096
144.87.0.0/21Royal Mail Group Limited2,048
144.87.24.0/21Royal Mail Group Limited2,048
178.78.112.0/21KCOM BT sub-allocation2,048
178.78.120.0/21KCOM BT sub-allocation2,048
188.172.160.0/21232web Internet Services2,048
188.172.168.0/21232web Internet Services2,048
194.169.32.0/21AgustaWestland Ltd2,048
94.72.248.0/21KCOM BT sub-allocation2,048
116.66.140.0/22Cognizant Technology Solution India Pvt Ltd, India Net block1,024
144.87.24.0/22Royal Mail Group Limited1,024
144.87.28.0/22Royal Mail Group Limited1,024
147.189.68.0/22FTIP0031652251,024
147.189.76.0/22FTIP0039028131,024
147.78.68.0/22Hop Bilisim Teknolojileri Anonim Sirketi1,024
151.240.180.0/22Private Customer1,024
151.240.184.0/22Private Customer1,024
151.240.188.0/22Private Customer1,024
151.240.192.0/22Private Customer1,024
151.240.196.0/22Private Customer1,024
151.240.200.0/22Private Customer1,024
151.241.180.0/22Private Customer1,024
151.241.184.0/22Private Customer1,024
151.241.188.0/22Private Customer1,024
151.241.192.0/22Private Customer1,024
151.241.196.0/22Private Customer1,024
151.241.200.0/22Private Customer1,024
151.241.52.0/22Private Customer1,024
151.241.56.0/22Private Customer1,024
151.241.60.0/22Private Customer1,024
151.244.204.0/22Private Customer1,024
151.244.208.0/22Private Customer1,024
151.244.80.0/22Private Customer1,024
151.245.204.0/22Private Customer1,024
151.245.208.0/22Private Customer1,024
151.245.80.0/22Private Customer1,024
15.145.20.0/22Amazon Data Services UK1,024
164.38.120.0/22Currys Retail Ltd.1,024
164.38.16.0/22Currys Retail Ltd.1,024
164.38.184.0/22Currys Retail Ltd.1,024
178.78.108.0/22BSi #3491,024
185.68.200.0/22Nibs Solutions Ltd1,024
185.90.32.0/22BI Worldwide Ltd1,024
193.187.140.0/22Hop Bilisim Teknolojileri Anonim Sirketi1,024
193.35.220.0/22Cambridge Consultants Limited1,024
193.38.192.0/22Co-operative Group Limited1,024
194.32.20.0/22Northern Ireland Civil Service1,024
194.36.216.0/22Quilter Business Services Limited1,024
213.249.188.0/22Technology Business Centre #6141,024
37.97.112.0/22Welt-Net Broadband1,024
46.248.108.0/22Burstfire Networks Ltd1,024
46.248.96.0/22Burstfire Networks Ltd1,024
72.9.180.0/22TELUS Communications Inc.1,024
81.161.52.0/22Welt-Net Broadband1,024
94.232.100.0/22Welt-Net Broadband1,024
142.205.162.0/23Toronto Dominion Bank512
144.177.74.0/23AKER SOLUTIONS ASA512
148.253.220.0/23Department for Environment, Food and Rural Affairs512
152.114.220.0/23ZELLIS UK LIMITED512
152.114.222.0/23ZELLIS UK LIMITED512
157.236.254.0/23Avon & Somerset Constabulary512
159.253.66.0/23Technology Business centre #753512
178.212.56.0/23Volta Central London's Data Centre512
178.78.106.0/23Eclipse Internet - Bluewave Internet Limted #683512
185.177.64.0/23Leidos Innovations UK LTD512
193.35.158.0/23Local Government Network512
193.35.160.0/23Local Government Network512
193.38.192.0/23Co-operative Group Limited512
193.38.194.0/23Co-operative Group Limited512
205.239.40.0/23DXC US Latin America Corporation512
213.190.16.0/23Northern Trust Corporation512
213.190.18.0/23Northern Trust Corporation512
217.31.10.0/23CSC Computer Sciences Ltd512
31.130.240.0/23Volta Central London's Data Centre512
46.248.102.0/23Burstfire Networks Ltd512
46.248.104.0/23Burstfire Networks Ltd512
46.248.124.0/23Burstfire Networks Ltd512
46.248.126.0/23Burstfire Networks Ltd512
82.136.54.0/23Burstfire Networks Ltd512
85.88.240.0/23Xperience Group512
89.145.172.0/23Leidos Innovations UK LTD512
91.236.216.0/23Pro Marketing Central LLC512
109.205.158.0/24BONTBLOCK256
132.153.244.0/24Atomic Weapons Establishment256
132.153.245.0/24Atomic Weapons Establishment256
132.153.246.0/24Atomic Weapons Establishment256
132.153.247.0/24Atomic Weapons Establishment256
132.153.248.0/24Atomic Weapons Establishment256
132.153.249.0/24Atomic Weapons Establishment256
132.153.250.0/24Atomic Weapons Establishment256
132.153.251.0/24Atomic Weapons Establishment256
132.153.252.0/24Atomic Weapons Establishment256
132.153.253.0/24Atomic Weapons Establishment256
132.153.254.0/24Atomic Weapons Establishment256
132.153.3.0/24Atomic Weapons Establishment256
138.108.94.0/24Nielsen Consumer LLC256
143.223.132.0/24British Telecommunications PLC256
148.252.3.0/24Department for Environment, Food and Rural Affairs256
148.252.7.0/24Department for Environment, Food and Rural Affairs256
149.117.130.0/24Synopsys Inc.256
149.254.1.0/24T-Mobile(UK) Erith WAP Production-Lan256
152.114.196.0/24ZELLIS UK LIMITED256
156.146.3.0/24Kate Spade Holdings LLC256
157.236.254.0/24Avon & Somerset Constabulary256
157.236.255.0/24Avon & Somerset Constabulary256
159.197.13.0/244000 Parkway256
159.197.44.0/244000 Parkway256
159.197.45.0/244000 Parkway256
163.5.115.0/24Private Customer256
163.5.122.0/24Private Customer256
163.5.208.0/24Private Customer256
163.5.217.0/24Private Customer256
163.5.222.0/24Private Customer256
163.5.249.0/24Private Customer256
163.5.37.0/24Private Customer256
163.5.67.0/24Private Customer256
163.5.98.0/24Private Customer256
164.134.134.0/24NHS National Services Scotland256
164.134.135.0/24NHS National Services Scotland256
164.134.136.0/24NHS National Services Scotland256
164.134.137.0/24NHS National Services Scotland256
164.134.138.0/24NHS National Services Scotland256
164.38.12.0/24Currys Retail Ltd.256
164.38.134.0/24Currys Retail Ltd.256
164.38.148.0/24Currys Retail Ltd.256
164.38.149.0/24Currys Retail Ltd.256
164.38.156.0/24Currys Retail Ltd.256
164.38.196.0/24Currys Retail Ltd.256
164.38.197.0/24Currys Retail Ltd.256
164.38.2.0/24Currys Retail Ltd.256
164.38.31.0/24Currys Retail Ltd.256
164.38.32.0/24Currys Retail Ltd.256
164.38.33.0/24Currys Retail Ltd.256
164.38.34.0/24Currys Retail Ltd.256
185.128.205.0/24Sagentia Ltd256
185.149.6.0/24Avis Budget Services Ltd.256
185.156.48.0/24Cheshire Datasystems Limited256
185.58.165.0/24NHS National Services Scotland256
192.152.14.0/24Aircraft Research Association Limited256
192.189.160.0/24Tarmac Holdings Limited256
192.53.46.0/24DXC US Latin America Corporation256
192.65.219.0/24British Telecom256
192.65.221.0/24British Telecom256
192.65.222.0/24British Telecom256
192.65.223.0/24British Telecom256
192.65.224.0/24British Telecom256
192.65.225.0/24British Telecom256
192.65.226.0/24British Telecom256
192.65.227.0/24British Telecom256
192.65.228.0/24British Telecom256
192.8.112.0/24HCL AMERICA INC256
192.8.149.0/24HCL AMERICA INC256
193.138.107.0/24Standard Life Employee Services Ltd.256
193.195.138.0/24VODAFONE ENTERPRISE EQUIPMENT LIMITED256
193.23.32.0/24Bayerische Motoren Werke Aktiengesellschaft256
193.28.232.0/24TEVA UK HOLDINGS LIMITED256
193.32.39.0/24Sir Robert McAlpine Ltd256
193.32.46.0/24Virgin Money plc256
193.32.48.0/24Virgin Money plc256
193.33.199.0/24VirtualTin Limited256
193.35.197.0/24Broadcast and Satellite Services256
193.36.240.0/24ALLEN OVERY SHEARMAN STERLING LLP256
193.36.243.0/24ALLEN OVERY SHEARMAN STERLING LLP256
193.36.253.0/24ALLEN OVERY SHEARMAN STERLING LLP256
193.36.80.0/24EE Limited256
193.37.142.0/24COMPUTER SERVICE CENTRE LTD256
193.39.141.0/24AWE PLC256
193.84.142.0/24Napp Pharmaceutical Holdings Limited256
194.132.24.0/24WSP Europe256
194.132.25.0/24WSP Europe256
194.155.58.0/24Dorset Healthcare NHS Trust (RDY)256
194.189.44.0/24Central Notts Healthcare Trust256
194.227.120.0/24York Teaching Hospital NHS Foundation Trust (RCB)256
194.227.72.0/24BUCKINGHAMSHIRE COUNTY COUNCIL256
194.227.73.0/24BUCKINGHAMSHIRE COUNTY COUNCIL256
194.246.78.0/24CAMELOT UK LOTTERIES LIMITED256
194.32.29.0/24Northern Ireland Civil Service256
194.32.31.0/24Northern Ireland Civil Service256
194.36.135.0/24Hitachi Europe Ltd256
194.36.68.0/24ITV Services Limited256
194.59.188.0/24World Conservation Monitoring Centre256
194.60.136.0/24Local Government Network256
194.60.137.0/24Local Government Network256
194.60.138.0/24Local Government Network256
194.60.139.0/24Local Government Network256
194.70.94.0/24Dabs Direct PLC256
195.104.240.0/24YORK HOSPITALS NHS FOUNDATION TRUST (RCB)256
195.130.11.0/24UK Ministry of Defence256
195.130.12.0/24UK Ministry of Defence256
195.130.3.0/24MODNET Internet256
195.130.6.0/24UK Ministry of Defence256
195.182.62.0/24The Football Association Ltd.256
195.35.123.0/24Head Office256
195.88.20.0/24Walsall Metropolitan Borough Council256
198.178.235.0/24KANTAR256
198.232.43.0/24Sidley Austin LLP256
205.239.42.0/24DXC US Latin America Corporation256
206.193.176.0/24ELC Management LLC - ELC Security Operations256
212.148.1.0/24OXFORD UNIVERSITY HOSPITALS NHS FOUNDATION TRUST (RTH)256
216.120.189.0/24British Telecommunications PLC256
216.165.88.0/24NYU London256
217.31.9.0/24CSC Computer Sciences Ltd256
46.68.66.0/24Orange PCS GPRS Services256
51.230.255.0/24Department for Work and Pensions256
77.94.224.0/24EU-NISSAN-BIZ-SUN256
82.140.134.0/24Code200256
82.140.138.0/24Code200256
82.140.143.0/24Code200256
82.140.170.0/24Code200256
83.138.19.0/24Threadneedle Asset Management Holdings Ltd256
84.46.177.0/24Code200256
84.46.181.0/24Code200256
84.46.183.0/24Code200256
84.46.188.0/24Code200256
84.46.190.0/24Code200256
84.46.191.0/24Code200256
84.46.194.0/24Code200256
85.235.123.0/24DMZ at Bacton Data Centre256
86.38.118.0/24Code200256
86.38.123.0/24Code200256
86.38.148.0/24Code200256
86.38.193.0/24Code200256
86.38.233.0/24Code200256
86.38.244.0/24Code200256
86.38.56.0/24Code200256
86.38.63.0/24Code200256
86.38.65.0/24Code200256
86.38.67.0/24Code200256
86.38.68.0/24Code200256
86.38.86.0/24Code200256
86.38.93.0/24Code200256
86.54.81.0/24ELEVEN HOLDINGS LIMITED256
89.117.183.0/24Code200256
89.117.198.0/24Code200256
89.117.203.0/24Code200256
89.117.235.0/24Code200256
91.102.189.0/24Moneysupermarket.com Limited256
91.102.190.0/24Moneysupermarket.com Limited256
91.102.191.0/24Moneysupermarket.com Limited256
91.142.128.0/24Elekta Limited256
91.227.78.0/24Ashridge (Bonar Law Memorial) Trust256
91.230.16.0/24Dairy Crest Ltd256
91.230.40.0/24BEST - BANCO ELECTRONICO DE SERVICO TOTAL, S.A.256
91.90.125.0/24M247 LTD256
91.90.127.0/24M247 LTD256
94.125.16.0/24Tesco Stores Ltd256
94.125.17.0/24Tesco Stores Ltd256
94.125.18.0/24Tesco Stores Ltd256
94.125.19.0/24Tesco Stores Ltd256
2a00:2380::/25British Telecom BTnet Management container
2001:4878:c259::/48Akamai Technologies, Inc.
2a01:4c8:f400::/48EE Limited
2a01:4c8:f401::/48EE Limited
2a03:1e82:90ff::/48Bayerische Motoren Werke Aktiengesellschaft

Hosted Domains

IPDomainDomain on this IP
213.1.238.126██████████1,405
213.123.60.239██████████1,377
81.145.31.210██████████881
194.72.108.26██████████673
194.73.113.100██████████413
213.1.214.233██████████304
81.145.16.13██████████260
81.145.31.217██████████251
213.1.214.231██████████250
213.1.238.125██████████241

WHOIS Information

ASHandle:       AS2856
OrgID:          AS2856
ASName:         AS2856
ASNumber:       AS2856
RegDate:        0000-00-00
Updated:        0000-00-00
TechHandle:     AA00-AAAA
Source:         AAAA

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