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 | 2025-10-16 |
| Country | GB |
IPv4 Prefixes
Currently, there are 65 IPv4 prefixes for AS5400 - British Telecommunications PLC in the database. This amounts to 702,464 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
136.238.224.0/24IPv6 Prefixes
Currently, there are 14 IPv6 prefixes for AS5400 - British Telecommunications PLC in the database. This amounts to 72,020,566,120,535,030,000,000,000,000,000 IPv6 addresses that are hosted on this ASN.
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
2a00:2200:2000::/40
2a00:2200:5300::/40
2a00:2280::/25
2a00:2300::/25
2a0c:7c80::/29
2a0c:8480::/30Raw WHOIS Record - AS5400 - British Telecommunications PLC