AS3561 208.144.120.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048208.144.120.0/24208.144.121.0/24208.144.122.0/24208.144.123.0/24208.144.124.0/24208.144.125.0/24208.144.126.0/24208.144.127.0/24