Charter Communications NETBLK-CHARTER-NET (NET-71-80-0-0-1) 71.80.0.0 - 71.95.255.255 Charter Communications STL-MO-71-91-240 (NET-71-91-240-0-1) 71.91.240.0 - 71.91.255.255 Air Cleaning Specialists ARCL-71-91-252-128 (NET-71-91-252-128-1) 71.91.252.128 - 71.91.252.135