AS5400 - British Telecommunications PLC

---

Detailed information about the Autonomous System AS5400:

API Url	https://api.ipapi.is/?q=AS5400
Status	Active
Organization	British Telecommunications PLC
Description	BT, GB
Website	bt.com
Type	isp
Abuse E-Mail	abuse@eu.bt.net
Whois	https://api.ipapi.is/?whois=AS5400
Created	2002-08-29
Updated	2025-04-28
Country	GB

IPv4 Prefixes

Currently, there are 130 IPv4 prefixes for AS5400 - British Telecommunications PLC in the database. This amounts to 1,404,928 IPv4 addresses that are hosted on this ASN. The following list shows the first 25 IPv4 prefixes of the ASN. To obtain all prefixes, please purchase the full database

31.95.0.0/21
31.95.16.0/20
31.95.48.0/21
31.95.96.0/19
31.95.218.0/23
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

IPv6 Prefixes

Currently, there are 26 IPv6 prefixes for AS5400 - British Telecommunications PLC in the database. This amounts to 144,040,513,271,050,420,000,000,000,000,000 IPv6 addresses that are hosted on this ASN. The following list shows the first 25 IPv6 prefixes of the ASN. To obtain all prefixes, please purchase the full database

2001:740::/32
2a00:2000::/23
2a00:2200::/25
2a00:2200:200::/40
2a00:2200:300::/40
2a00:2200:900::/40
2a00:2200:b00::/40
2a00:2200:d00::/40
2a00:2200:5300::/40
2a00:2280::/25
2a00:2300::/25
2a0c:7c80::/29
2a0c:8480::/30
2001:740::/32
2a00:2000::/23
2a00:2200::/25
2a00:2200:200::/40
2a00:2200:300::/40
2a00:2200:900::/40
2a00:2200:b00::/40
2a00:2200:d00::/40
2a00:2200:5300::/40
2a00:2280::/25
2a00:2300::/25
2a0c:7c80::/29

Raw WHOIS Record - AS5400 - British Telecommunications PLC