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
1 147.148.133.2 Windows 7 Opera Generic Last seen: 18.02.2026
2 31.54.58.67 Linux Opera 8.5 Last seen: 17.02.2026
3 86.165.208.178 iPhone Mobile Safari 13.0 Last seen: 17.02.2026
4 86.154.250.158 Unknown OS Platform DefaultProperties Last seen: 17.02.2026
5 147.148.222.238 Linux Chrome Generic Last seen: 15.02.2026
6 86.169.175.73 iPhone Firefox Generic for iOS Last seen: 13.02.2026
7 2a00:23c7:58ce:b401:b2f7:c4ff:fe5a:a835 Linux Chrome 55.0 Last seen: 13.02.2026
8 86.165.54.134 Windows Server 2003/XP x64 Opera Generic Last seen: 12.02.2026
9 86.165.192.122 Mac OS X Safari 4.0 Last seen: 12.02.2026
10 86.158.150.182 Windows 10 DefaultProperties Last seen: 12.02.2026
11 151.245.207.163 Windows 10 Chrome 139.0 Last seen: 11.02.2026
12 86.145.102.148 Windows Vista Chrome Generic Last seen: 08.02.2026
13 109.153.167.51 Windows Server 2003/XP x64 DefaultProperties Last seen: 07.02.2026
14 86.139.228.254 Windows XP Chrome Generic Last seen: 06.02.2026
15 2a00:23c7:3387:5c01:147a:f2c4:b792:8960 Linux Opera Generic Last seen: 06.02.2026
16 81.134.227.39 Linux Chrome Generic Last seen: 05.02.2026
17 86.139.48.36 Windows Server 2003/XP x64 Chrome Generic Last seen: 05.02.2026
18 2a00:23c8:e011:b801:3e5c:c4ff:fee7:a734 Windows 7 Safari 5.1 Last seen: 04.02.2026
19 2a00:23c5:cd1e:d901:37:cdae:bf90:1dbb Mac OS X Firefox 3.6 Last seen: 04.02.2026
20 2a00:23c8:3830:3501:cdeb:34ed:2e0f:4b36 Windows Vista DefaultProperties Last seen: 04.02.2026