AS3561 208.144.224.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048208.144.224.0/24208.144.225.0/24208.144.226.0/24208.144.227.0/24208.144.228.0/24208.144.229.0/24208.144.230.0/24208.144.231.0/24