AS14921 71.1.128.0/21 CIDR and IP Range Summary.ASN: 14921 - CenturyLink Communications LLCHost Count: 2046Addressable IPs: 204871.1.128.0/2471.1.129.0/2471.1.130.0/2471.1.131.0/2471.1.132.0/2471.1.133.0/2471.1.134.0/2471.1.135.0/24