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-MIAMI-15 (NET-173-9-128-0-1) 173.9.128.0 - 173.9.191.255 INC IMPACT COMPUTERS INCIMPACTCOMPUTERS (NET-173-9-166-64-1) 173.9.166.64 - 173.9.166.79