AS3300 is an AS number assigned to BT British Telecommunications Limited. Country or region: United Kingdom.

OrganizationBT British Telecommunications Limited
CountryUnited Kingdom (GB)
IPv4 addresses512,768
IPv4 ranges48
IPv6 ranges20

AS numbers: United Kingdom

IPv4 address ranges (largest 20)

Range (CIDR)AddressesCheck
205.248.0.0/16 65,536 Check if your IP is in this range
206.182.0.0/16 65,536 Check if your IP is in this range
207.117.0.0/16 65,536 Check if your IP is in this range
207.209.0.0/16 65,536 Check if your IP is in this range
209.28.0.0/16 65,536 Check if your IP is in this range
204.231.0.0/17 32,768 Check if your IP is in this range
61.14.0.0/18 16,384 Check if your IP is in this range
63.250.128.0/18 16,384 Check if your IP is in this range
192.237.64.0/18 16,384 Check if your IP is in this range
198.207.64.0/18 16,384 Check if your IP is in this range
199.6.64.0/18 16,384 Check if your IP is in this range
204.140.64.0/18 16,384 Check if your IP is in this range
204.231.128.0/18 16,384 Check if your IP is in this range
192.92.32.0/19 8,192 Check if your IP is in this range
203.187.128.0/19 8,192 Check if your IP is in this range
72.29.128.0/20 4,096 Check if your IP is in this range
192.92.24.0/21 2,048 Check if your IP is in this range
192.157.136.0/21 2,048 Check if your IP is in this range
192.157.152.0/21 2,048 Check if your IP is in this range
192.92.20.0/22 1,024 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.