AS3561 64.240.48.0/21 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 204864.240.48.0/2464.240.49.0/2464.240.50.0/2464.240.51.0/2464.240.52.0/2464.240.53.0/2464.240.54.0/2464.240.55.0/24