AS21757 208.71.96.0/21 CIDR and IP Range Summary.ASN: 21757 - HTC CommunicationsHost Count: 2046Addressable IPs: 2048208.71.96.0/24208.71.97.0/24208.71.98.0/24208.71.99.0/24208.71.100.0/24208.71.101.0/24208.71.102.0/24208.71.103.0/24