AS3257 217.204.80.0/20 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 4094Addressable IPs: 4096217.204.80.0/24217.204.81.0/24217.204.82.0/24217.204.83.0/24217.204.84.0/24217.204.85.0/24217.204.86.0/24217.204.87.0/24217.204.88.0/24217.204.89.0/24217.204.90.0/24217.204.91.0/24217.204.92.0/24217.204.93.0/24217.204.94.0/24217.204.95.0/24