AS6223 208.68.144.0/21 CIDR and IP Range Summary.ASN: 6223 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048208.68.144.0/24208.68.145.0/24208.68.146.0/24208.68.147.0/24208.68.148.0/24208.68.149.0/24208.68.150.0/24208.68.151.0/24