Comcast Cable Communications, Inc. JUMPSTART-5 (NET-71-224-0-0-1) 71.224.0.0 - 71.239.255.255 Comcast Cable Communications, Inc. COLORADO-21 (NET-71-229-128-0-1) 71.229.128.0 - 71.229.255.255 # ARIN WHOIS database, last updated 2010-02-08 20:00 # Enter ? for additional hints on searching ARIN's WHOIS database. # # ARIN WHOIS data and services are subject to the Terms of Use # available at https://www.arin.net/whois_tou.html