AS2856 is an AS number assigned to BT-UK-AS British Telecommunications Limited. Country or region: United Kingdom.

OrganizationBT-UK-AS British Telecommunications Limited
CountryUnited Kingdom (GB)
IPv4 addresses13,850,112
IPv4 ranges527
IPv6 ranges377
RegistrationLook up the holder and the abuse contact in IP Lookup

AS numbers: United Kingdom

IPv4 address ranges (largest 20)

Range (CIDR)AddressesCheck
86.128.0.0/10 4,194,304 Check if your IP is in this range
81.128.0.0/11 2,097,152 Check if your IP is in this range
109.144.0.0/12 1,048,576 Check if your IP is in this range
31.48.0.0/13 524,288 Check if your IP is in this range
31.112.0.0/13 524,288 Check if your IP is in this range
95.144.0.0/13 524,288 Check if your IP is in this range
31.100.0.0/14 262,144 Check if your IP is in this range
31.120.0.0/14 262,144 Check if your IP is in this range
147.148.0.0/14 262,144 Check if your IP is in this range
213.120.0.0/14 262,144 Check if your IP is in this range
217.40.0.0/14 262,144 Check if your IP is in this range
5.80.0.0/15 131,072 Check if your IP is in this range
31.90.0.0/15 131,072 Check if your IP is in this range
31.92.0.0/15 131,072 Check if your IP is in this range
31.106.0.0/15 131,072 Check if your IP is in this range
31.126.0.0/15 131,072 Check if your IP is in this range
46.68.0.0/15 131,072 Check if your IP is in this range
62.6.0.0/15 131,072 Check if your IP is in this range
109.180.0.0/15 131,072 Check if your IP is in this range
194.72.0.0/15 131,072 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.