shell:$ nslookup -timeout=2 -retry=1 'beta.webex.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	beta.webex.com
Address: 18.238.49.29
Name:	beta.webex.com
Address: 18.238.49.6
Name:	beta.webex.com
Address: 18.238.49.70
Name:	beta.webex.com
Address: 18.238.49.101