AS3561 208.133.40.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 2048208.133.40.0/24208.133.41.0/24208.133.42.0/24208.133.43.0/24208.133.44.0/24208.133.45.0/24208.133.46.0/24208.133.47.0/24