Comcast Cable Communications, LLC CBC-CM-4 (NET-173-8-0-0-1) 173.8.0.0 - 173.15.255.255 Comcast Cable Communications, LLC CBC-SEATTLE-15 (NET-173-10-64-0-1) 173.10.64.0 - 173.10.127.255 JOSS JIM JOSSJIM (NET-173-10-76-80-1) 173.10.76.80 - 173.10.76.87