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

Non-authoritative answer:
cisco.webex.com	canonical name = nebulam.webex.com.
nebulam.webex.com	canonical name = global-nebulam-new.webex.com.
Name:	global-nebulam-new.webex.com
Address: 173.243.0.154
Name:	global-nebulam-new.webex.com
Address: 2607:fcf0:2500:1000:173:243:0:154