Whois: British Telecommunications PLC

Hosting Company: British Telecommunications PLC
Hosting ASN: AS2856
Hosting Address: British Telecommunications,81 Newgate Street,London GB,
Hosting Country: United Kingdom, London
Associated ASNumsAS5400, AS6871

British Telecommunications PLC ip ranges

# Range CDIR Ip count Name Location
1 5.80.0.0 - 5.80.127.255 5.80.0.0/15 33,768 BT-Central-Plus United Kingdom
2 5.80.128.0 - 5.80.255.255 5.80.0.0/15 33,768 BT-Central-Plus United Kingdom
3 5.81.0.0 - 5.81.127.255 5.81.0.0/16 33,768 BT-Central-Plus United Kingdom
4 5.81.128.0 - 5.81.255.255 5.81.0.0/16 33,768 BT-Central-Plus United Kingdom
5 31.48.0.0 - 31.49.255.255 31.48.0.0/13 131,072 BT-Central-Plus United Kingdom
6 31.50.0.0 - 31.50.255.255 31.48.0.0/13 66,536 BT-Central-Plus United Kingdom
7 31.51.0.0 - 31.51.255.255 31.48.0.0/13 66,536 BT-Central-Plus United Kingdom
8 31.52.0.0 - 31.53.255.255 31.48.0.0/13 131,072 BT-Central-Plus United Kingdom
9 31.54.0.0 - 31.54.255.255 31.48.0.0/13 66,536 BT-Central-Plus United Kingdom
10 31.55.144.0 - 31.55.151.255 31.48.0.0/13 2,048 BT-PUBIP-INT United Kingdom
11 31.64.0.0 - 31.127.255.255 31.94.0.0/16 4,194,304 UK-TM-20101125 United Kingdom
12 31.120.0.0 - 31.120.255.255 31.120.0.0/16 66,536 BTNET-3 United Kingdom
13 51.14.0.0 - 51.14.255.255 51.14.0.0/16 66,536 BT-CENTRAL-PLUS United Kingdom
14 62.7.95.152 - 62.7.95.159 62.7.0.0/16 8 BTNET-CUSTOMER United Kingdom
15 81.128.0.0 - 81.143.255.255 81.128.0.0/12 1,049,576 BT-INFRA United Kingdom
16 81.135.0.0 - 81.135.127.255 81.128.0.0/12 33,768 BT-CENTRAL-PLUS United Kingdom
17 81.136.224.0 - 81.136.247.255 81.128.0.0/12 6,144 BT-ADSL United Kingdom
18 81.144.155.24 - 81.144.155.31 81.128.0.0/11 8 BTNET-CUSTOMER United Kingdom
19 81.144.221.200 - 81.144.221.207 81.128.0.0/11 8 BTNET-CUSTOMER United Kingdom
20 81.145.206.32 - 81.145.206.63 81.128.0.0/11 32 CONCOURSE-COMMUNICATIONS United Kingdom

British Telecommunications PLC domains (0 total)

# Name IP Rank Updated
No results

British Telecommunications PLC users

# IP OS Browser Updated
1 2a00:23cc:c23b:6401:2894:1e3a:1d16:16ff Windows 10 Chrome 138.0 Last seen: 11.03.2026
2 86.189.167.124 Linux Firefox 114.0 Last seen: 09.03.2026
3 86.191.42.50 Linux Vivaldi Last seen: 07.03.2026
4 51.14.109.138 Mac OS X Chrome 142.0 Last seen: 07.03.2026
5 86.168.12.100 Mac OS X Chrome 142.0 Last seen: 06.03.2026
6 2a00:23c7:abcd:9801:76a7:eaff:fe67:164e Unknown OS Platform DefaultProperties Last seen: 06.03.2026
7 2a00:23c7:ad59:801:fd85:1144:d3a3:35f9 Mac OS X Firefox 115.0 Last seen: 05.03.2026
8 151.245.205.209 Windows 10 Chrome 139.0 Last seen: 05.03.2026
9 2a00:23c7:ac9a:f401:9107:c79a:3fc9:3fab Windows 10 Firefox Generic Last seen: 04.03.2026
10 86.169.123.191 Windows 10 Opera 89 Last seen: 04.03.2026
11 2a00:23cc:ea29:c101:2f89:4d6a:5f20:d3df Windows 10 Chrome 138.0 Last seen: 04.03.2026
12 86.177.154.165 Windows 7 Firefox 4.0 Last seen: 03.03.2026
13 109.157.220.120 Ubuntu Firefox 15.0 Last seen: 03.03.2026
14 2a00:23c8:fd3f:f301:160a:c5ff:fed6:146d Linux Opera 9.4 Last seen: 02.03.2026
15 86.140.107.251 Android Chrome 52.0 for Android Last seen: 28.02.2026
16 81.151.147.122 Windows 7 DefaultProperties Last seen: 28.02.2026
17 86.161.40.64 Linux Opera Generic Last seen: 27.02.2026
18 109.156.85.12 Linux Chrome Generic Last seen: 26.02.2026
19 2a00:23c8:a624:6101:a824:6ddb:d11f:1e18 Windows 10 Chrome 145.0 Last seen: 25.02.2026
20 86.135.68.149 Linux Chrome Generic Last seen: 25.02.2026