AS3257 216.254.64.0/20 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 4094Addressable IPs: 4096216.254.64.0/24216.254.65.0/24216.254.66.0/24216.254.67.0/24216.254.68.0/24216.254.69.0/24216.254.70.0/24216.254.71.0/24216.254.72.0/24216.254.73.0/24216.254.74.0/24216.254.75.0/24216.254.76.0/24216.254.77.0/24216.254.78.0/24216.254.79.0/24