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
1 109.154.75.116 Mac OS X Firefox 136.0 Last seen: 21.04.2026
2 2a00:23cc:e628:aa01:14ef:66a7:b748:16fc Windows 10 Chrome 138.0 Last seen: 20.04.2026
3 86.143.70.207 Mac OS X Chrome 119.0 Last seen: 20.04.2026
4 2a00:23c4:35a2:6a01:f5ac:f72d:2f6b:4b18 iPad Chrome Generic for iOS Last seen: 20.04.2026
5 2a00:23c4:e111:5001:b6b7:42ff:fea7:926e iPhone Mobile Safari Generic Last seen: 20.04.2026
6 109.152.76.191 Mac OS X Chrome 128.0 Last seen: 20.04.2026
7 86.151.42.106 Mac OS X Chrome 142.0 Last seen: 20.04.2026
8 86.164.121.255 Mac OS X Chrome 133.0 Last seen: 19.04.2026
9 81.135.119.100 Mac OS X Chrome 142.0 Last seen: 19.04.2026
10 2a00:23c4:b4b3:1e01:de91:bfff:fe20:321e Mac OS X Chrome 145.0 Last seen: 19.04.2026
11 109.153.176.71 Mac OS X Firefox 129.0 Last seen: 19.04.2026
12 86.157.184.188 Mac OS X Chrome 142.0 Last seen: 18.04.2026
13 2a00:23c6:b729:6b01:8118:3ae0:3e07:3762 Mac OS X Chrome 142.0 Last seen: 18.04.2026
14 81.136.13.36 Mac OS X Chrome 142.0 Last seen: 18.04.2026
15 86.145.223.7 Mac OS X Chrome 142.0 Last seen: 18.04.2026
16 31.54.115.134 Windows Vista DefaultProperties Last seen: 17.04.2026
17 81.154.221.59 Mac OS X Chrome 142.0 Last seen: 17.04.2026
18 2a00:23c7:7208:9c01:7cc5:dc4c:ef3d:f3cd iPhone Mobile Safari Generic Last seen: 17.04.2026
19 151.245.205.13 Mac OS X Chrome 139.0 Last seen: 17.04.2026
20 86.133.234.141 Mac OS X Chrome 142.0 Last seen: 17.04.2026