AS3561 208.139.160.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048208.139.160.0/24208.139.161.0/24208.139.162.0/24208.139.163.0/24208.139.164.0/24208.139.165.0/24208.139.166.0/24208.139.167.0/24