AS5400 · British Telecommunications Limited

88
IPv4 prefixes
735,232
Announced IPv4 slots
40
IPv6 prefixes
🇬🇧 GB
Country

Summary

AS number
AS5400
Name
British Telecommunications Limited
Country
🇬🇧 United Kingdom
Type
RIPE
Category
isp
Normalized type
isp
Organization domain
bt.net
Domain evidence
Source reported; ownership unverified
Last changed
Unknown
Announced
128 prefixes
Updated
2026-10-25

IPv4 prefixes on this page (50 of 88)

Prefix
8.12.61.0/24
31.95.0.0/21
31.95.14.0/23
31.95.16.0/20
31.95.48.0/21
31.95.56.0/24
31.95.64.0/21
31.95.96.0/19
31.95.160.0/20
31.95.184.0/21
31.95.208.0/21
31.95.218.0/23
31.95.220.0/22
31.95.240.0/22
31.95.246.0/23
31.95.248.0/22
31.95.254.0/23
46.248.8.0/23
46.248.10.0/23
62.5.0.0/17
62.102.0.0/17
62.134.0.0/16
62.172.0.0/21
62.173.192.0/18
62.180.0.0/16
80.255.160.0/20
80.255.160.0/24
80.255.161.0/24
80.255.162.0/24
82.138.160.0/19
82.150.0.0/19
132.244.64.0/21
132.244.72.0/21
132.244.240.0/24
136.238.84.0/24
136.238.85.0/24
136.238.224.0/24
166.49.128.0/17
185.94.0.0/22
185.249.4.0/24
192.109.52.0/24
193.58.130.0/23
193.202.26.0/24
194.33.53.0/24
194.33.54.0/24
194.33.55.0/24
194.50.160.0/24
194.74.80.0/21
194.76.40.0/24
194.107.114.0/24

Address slots sum announced prefixes; overlapping routes count separately.