AS12271 172.254.8.0/21 CIDR and IP Range Summary.ASN: 12271 - Charter Communications IncHost Count: 2046Addressable IPs: 2048172.254.8.0/24172.254.9.0/24172.254.10.0/24172.254.11.0/24172.254.12.0/24172.254.13.0/24172.254.14.0/24172.254.15.0/24