AS3561 64.75.48.0/20 CIDR and IP Range Summary.ASN: 3561 - CenturyLink Communications LLCHost Count: 4094Addressable IPs: 409664.75.48.0/2464.75.49.0/2464.75.50.0/2464.75.51.0/2464.75.52.0/2464.75.53.0/2464.75.54.0/2464.75.55.0/2464.75.56.0/2464.75.57.0/2464.75.58.0/2464.75.59.0/2464.75.60.0/2464.75.61.0/2464.75.62.0/2464.75.63.0/24