AS15404 is an AS number assigned to COLT Technology Services Group Limited. Country or region: United Kingdom.

OrganizationCOLT Technology Services Group Limited
CountryUnited Kingdom (GB)
IPv4 addresses141,568
IPv4 ranges121
IPv6 ranges9

AS numbers: United Kingdom

IPv4 address ranges (largest 20)

Range (CIDR)AddressesCheck
161.17.0.0/16 65,536 Check if your IP is in this range
62.85.160.0/19 8,192 Check if your IP is in this range
194.59.96.0/19 8,192 Check if your IP is in this range
5.11.96.0/20 4,096 Check if your IP is in this range
148.188.0.0/20 4,096 Check if your IP is in this range
148.188.192.0/20 4,096 Check if your IP is in this range
148.188.232.0/21 2,048 Check if your IP is in this range
178.249.200.0/21 2,048 Check if your IP is in this range
193.26.248.0/21 2,048 Check if your IP is in this range
194.99.120.0/21 2,048 Check if your IP is in this range
148.188.224.0/22 1,024 Check if your IP is in this range
155.137.0.0/22 1,024 Check if your IP is in this range
185.212.156.0/22 1,024 Check if your IP is in this range
185.218.120.0/22 1,024 Check if your IP is in this range
193.8.64.0/22 1,024 Check if your IP is in this range
193.29.152.0/22 1,024 Check if your IP is in this range
193.176.112.0/22 1,024 Check if your IP is in this range
194.15.244.0/22 1,024 Check if your IP is in this range
77.74.158.0/23 512 Check if your IP is in this range
129.35.20.0/23 512 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.