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 31.48.0.0 - 31.49.255.255 31.48.0.0/13 131,072 BT-Central-Plus United Kingdom
5 31.50.0.0 - 31.50.255.255 31.48.0.0/13 66,536 BT-Central-Plus United Kingdom
6 31.51.0.0 - 31.51.255.255 31.48.0.0/13 66,536 BT-Central-Plus United Kingdom
7 31.52.0.0 - 31.53.255.255 31.48.0.0/13 131,072 BT-Central-Plus United Kingdom
8 31.54.0.0 - 31.54.255.255 31.48.0.0/13 66,536 BT-Central-Plus United Kingdom
9 31.55.144.0 - 31.55.151.255 31.48.0.0/13 2,048 BT-PUBIP-INT United Kingdom
10 31.64.0.0 - 31.127.255.255 31.94.0.0/16 4,194,304 UK-TM-20101125 United Kingdom
11 31.120.0.0 - 31.120.255.255 31.120.0.0/16 66,536 BTNET-3 United Kingdom
12 81.128.0.0 - 81.143.255.255 81.128.0.0/12 1,049,576 BT-INFRA United Kingdom
13 81.135.0.0 - 81.135.127.255 81.128.0.0/12 33,768 BT-CENTRAL-PLUS United Kingdom
14 81.136.224.0 - 81.136.247.255 81.128.0.0/12 6,144 BT-ADSL United Kingdom
15 81.144.155.24 - 81.144.155.31 81.128.0.0/11 8 BTNET-CUSTOMER United Kingdom
16 81.144.221.200 - 81.144.221.207 81.128.0.0/11 8 BTNET-CUSTOMER United Kingdom
17 81.145.206.32 - 81.145.206.63 81.128.0.0/11 32 CONCOURSE-COMMUNICATIONS United Kingdom
18 81.147.120.0 - 81.147.127.255 81.128.0.0/11 2,048 BT-CENTRAL-PLUS United Kingdom
19 81.151.0.0 - 81.151.255.255 81.128.0.0/11 66,536 BT-CENTRAL-PLUS United Kingdom
20 81.153.0.0 - 81.153.255.255 81.128.0.0/11 66,536 BT-CENTRAL-PLUS United Kingdom

British Telecommunications PLC domains (0 total)

# Name IP Rank Updated
No results

British Telecommunications PLC users

# IP OS Browser Updated
1 2a00:23c7:e198:3b01:6ab6:91ff:fe73:6f9f Windows 10 IE 7.0 Last seen: 18.12.2025
2 86.159.178.97 Mac OS X Safari 5.0 Last seen: 18.12.2025
3 2a00:23c7:306d:4701:76a7:eaff:fef3:10c2 iPhone Firefox 12.1 for iOS Last seen: 16.12.2025
4 86.131.5.177 Windows 10 Chrome 143.0 Last seen: 16.12.2025
5 2a00:23c8:1242:4b01:c1d4:38c0:4cbe:2fe2 iPod Mobile Safari Generic Last seen: 16.12.2025
6 31.125.116.165 Windows Vista Opera Generic Last seen: 16.12.2025
7 2a00:23c8:b9a:ae01:d105:8f4a:e1c9:4ce9 Linux Opera 8.53 Last seen: 16.12.2025
8 2a00:23c8:22c2:8101:b374:c823:7448:8c72 Unknown OS Platform DefaultProperties Last seen: 16.12.2025
9 86.179.99.127 Mac OS X Safari 4.1 Last seen: 16.12.2025
10 2a00:23c8:732:e401:fe65:deff:fee0:ddbf Windows Vista DefaultProperties Last seen: 16.12.2025
11 217.42.45.178 Unknown OS Platform DefaultProperties Last seen: 16.12.2025
12 2a00:23c8:b85a:6a01:a8a3:c14a:44ca:959 iPhone Firefox 12.2 for iOS Last seen: 15.12.2025
13 2a00:23c8:497:1001:9d33:db96:dc0:5107 Windows 8 DefaultProperties Last seen: 15.12.2025
14 5.80.211.0 Android Firefox 24.0 for Android Last seen: 15.12.2025
15 2a00:23c7:3092:4601:b67c:9cff:fe16:99d6 Android Firefox 29.0 for Android Last seen: 15.12.2025
16 31.49.165.27 Linux Chrome 49.0 Last seen: 15.12.2025
17 5.81.21.36 Linux Opera Generic Last seen: 15.12.2025
18 2a00:23c8:4b01:2f01:d86d:ec4f:d77b:f5f5 Linux Opera Generic Last seen: 15.12.2025
19 2a00:23c8:952b:ea01:e8b4:cf7a:dccc:c216 Unknown OS Platform Opera Generic Last seen: 14.12.2025
20 81.156.150.187 Unknown OS Platform Opera Generic Last seen: 12.12.2025