AS18494 71.0.56.0/21 CIDR and IP Range Summary.ASN: 18494 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 204871.0.56.0/2471.0.57.0/2471.0.58.0/2471.0.59.0/2471.0.60.0/2471.0.61.0/2471.0.62.0/2471.0.63.0/24