# Opened access to IP addresses

The Boomerang 3 system uses the servers listed below.

It must be able to access their IP addresses.

1. SMS server at [www.infobip.com](http://www.infobip.com)

IP: **3.120.21.99** and **3.121.65.141**.

1. ICU License server at iculicense.com

IP: **85.118.204.66**