AS3561 66.128.64.0/20 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 4094Addressable IPs: 409666.128.64.0/2466.128.65.0/2466.128.66.0/2466.128.67.0/2466.128.68.0/2466.128.69.0/2466.128.70.0/2466.128.71.0/2466.128.72.0/2466.128.73.0/2466.128.74.0/2466.128.75.0/2466.128.76.0/2466.128.77.0/2466.128.78.0/2466.128.79.0/24