AT&T Connect Web Conference IP's and Ports

Complete list of the ranges for AT&T Connect hosted equipment.
List updated: 23/1/14

Ports Used: 80, 443, 7778

North America: AT&T EE smtp servers:
smtp1.uc.att.com [206.19.56.170]
smtp2.uc.att.com [206.19.56.171]


North America East coast 
North America West coast 
206.19.50.0/24
206.19.56.0/23
12.130.55.0/24
12.130.53.0/24
206.17.109.0/24
206.17.96.96/28
12.130.3.32/27
12.130.142.0/24
12.130.157.160/27

EMEA:
UK
Netherland
195.33.101.0/24
195.33.103.0/27
32.42.42.0/24
32.42.37.0/27
213.8.142.144/28

APAC:
Singapore
Japan
32.60.46.0/24
32.60.45.192/27
113.34.172.8/29
211.157.101.153
211.157.101.154
122.248.145.0/27
122.248.145.32/27

AT&T IE Registration Email source address:
teleconferences@att.com