AS3561 208.150.64.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048208.150.64.0/24208.150.65.0/24208.150.66.0/24208.150.67.0/24208.150.68.0/24208.150.69.0/24208.150.70.0/24208.150.71.0/24