AS3561 216.33.64.0/20 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 4094Addressable IPs: 4096216.33.64.0/24216.33.65.0/24216.33.66.0/24216.33.67.0/24216.33.68.0/24216.33.69.0/24216.33.70.0/24216.33.71.0/24216.33.72.0/24216.33.73.0/24216.33.74.0/24216.33.75.0/24216.33.76.0/24216.33.77.0/24216.33.78.0/24216.33.79.0/24