WebEx domain, IP addresses, and ports (19-Feb-2013):

World Wide URL domain exception = *.webex.com

IP addresses and ranges:

• 64.68.96.0/19 (CIDR) or 64.68.96.0 - 64.68.127.255 (net range)
• 66.114.160.0/20 (CIDR) or 66.114.160.0 - 66.114.175.255 (net range)
• 66.163.32.0/20 (CIDR) or 66.163.32.0 - 66.163.47.255 (net range)
• 209.197.192.0/19 (CIDR) or 209.197.192.0 - 209.197.223.255 (net range)
• 208.8.81.0/24 (CIDR) or 208.8.81.0 - 208.8.81.255 (net range)
• 210.4.192.0/20 (CIDR) or 210.4.192.0 - 210.4.207.255 (net range)
• 62.109.192.0/18 (CIDR) or 62.109.192.0 - 62.109.255.255 (net range)
• 173.243.0.0/20 (CIDR) or 173.243.0.0 - 173.243.15.255 (net range)
• 114.29.192.0/19 (CIDR) or 114.29.192.0 - 114.29.223.255 (net range)

Ports that need to be open to clients (Internet):