AS15404 COLT Technology Services Group Limited

A network in United Kingdom. Here are the size of its IP ranges and the data used for visitor checks.

Country

IPv4 addresses

141,824 addresses

IPv4 ranges

112

IPv6 ranges

Visitor check data

This network mainly serves home, office and mobile lines. VPN servers are counted only when they are on the public list. How checks work

United Kingdom71,424 addresses

Germany34,304 addresses

Italy15,616 addresses

United States4,352 addresses

France2,816 addresses

Up to 20, largest first (112 in total).

161.17.0.0/16

62.85.160.0/19

194.59.96.0/19

5.11.96.0/20

148.188.0.0/20

148.188.192.0/20

193.26.246.0 ~ 193.26.255.255

148.188.232.0/21

178.249.200.0/21

193.29.150.0 ~ 193.29.157.255

194.99.120.0/21

194.15.242.0 ~ 194.15.247.255

148.188.224.0/22

155.137.0.0/22

185.212.156.0/22

185.218.120.0/22

193.8.64.0/22

193.176.112.0/22

170.200.251.0 ~ 170.200.253.255

170.252.84.0 ~ 170.252.86.255

Data: DB-IP (CC BY 4.0), public VPN server list, Tor Project exit list · as of 2026-10-12