AS3561 66.128.224.0/20 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 4094Addressable IPs: 409666.128.224.0/2466.128.225.0/2466.128.226.0/2466.128.227.0/2466.128.228.0/2466.128.229.0/2466.128.230.0/2466.128.231.0/2466.128.232.0/2466.128.233.0/2466.128.234.0/2466.128.235.0/2466.128.236.0/2466.128.237.0/2466.128.238.0/2466.128.239.0/24