Required Network Ports / IP Addresses

For FrontSpin’s VoIP telephony to function properly, certain Network Ports / IP Addresses are required. If any of these are blocked on your network, it can result in call quality and performance issues. 

75.126.21.98 – Dallas, TX – USA

75.126.64.181 – Dallas, TX 2 – USA

52.117.196.231 – Dallas, TX 3 – USA

52.117.196.226 – Dallas, TX 4 – USA

52.117.52.254 – Dallas, TX 5 – USA

52.117.52.245 – Dallas, TX 6 – USA

52.117.52.249 – Dallas, TX 7 – USA

52.116.172.37  – Dallas, TX 8 – USA

169.48.244.182  – Dallas, TX 9 – USA

75.126.243.154  – Dallas, TX 10 – USA

169.44.168.213 – San Jose, CA 1 – USA

169.44.168.214 – San Jose, CA 2 – USA

169.62.104.138 – San Jose, CA 3 – USA

50.22.177.178 – Seattle, WA – USA

50.22.177.184 – Seattle, WA 2 – USA

50.22.177.185 – Seattle, WA 3 – USA

50.22.177.180 – Seattle, WA 4 – USA

50.22.177.179 – Seattle, WA 5 – USA

50.22.177.186 – Seattle, WA 6 – USA

50.22.177.182 – Seattle, WA 7 – USA

169.54.48.140 – Washington, DC 1 – USA

169.54.48.150 – Washington, DC 2 – USA

169.54.48.148 – Washington, DC 3 – USA

169.54.48.144 – Washington, DC 4 – USA

169.54.48.154 – Washington, DC 5 – USA

169.54.48.134 – Washington, DC 6 – USA

169.54.48.137 – Washington, DC 7 – USA

169.50.214.24 – London

158.175.80.217 – London 2