AS5400 is an AS number assigned to BT British Telecommunications Limited. Country or region: United Kingdom.

OrganizationBT British Telecommunications Limited
CountryUnited Kingdom (GB)
IPv4 addresses713,472
IPv4 ranges72
IPv6 ranges13
RegistrationLook up the holder and the abuse contact in IP Lookup

AS numbers: United Kingdom

IPv4 address ranges (largest 20)

Range (CIDR)AddressesCheck
62.134.0.0/16 65,536 Check if your IP is in this range
62.180.0.0/16 65,536 Check if your IP is in this range
195.100.0.0/16 65,536 Check if your IP is in this range
195.163.0.0/16 65,536 Check if your IP is in this range
206.73.0.0/16 65,536 Check if your IP is in this range
213.15.0.0/16 65,536 Check if your IP is in this range
62.5.0.0/17 32,768 Check if your IP is in this range
62.102.0.0/17 32,768 Check if your IP is in this range
166.49.128.0/17 32,768 Check if your IP is in this range
62.173.192.0/18 16,384 Check if your IP is in this range
212.162.192.0/18 16,384 Check if your IP is in this range
213.194.0.0/18 16,384 Check if your IP is in this range
213.236.64.0/18 16,384 Check if your IP is in this range
31.95.96.0/19 8,192 Check if your IP is in this range
82.138.160.0/19 8,192 Check if your IP is in this range
82.150.0.0/19 8,192 Check if your IP is in this range
194.213.64.0/19 8,192 Check if your IP is in this range
195.90.64.0/19 8,192 Check if your IP is in this range
195.182.96.0/19 8,192 Check if your IP is in this range
212.8.160.0/19 8,192 Check if your IP is in this range

AS numbers of a similar size

About the data

Compiled by this site from publicly available internet registry assignment information and IP address range data. The data date is the build date of the data when the content of this page last changed. Adjacent ranges are merged and expressed as CIDR blocks, so they may differ from the routes actually announced.

This product includes GeoLite2 data created by MaxMind, available from https://www.maxmind.com.