AS3257 80.82.136.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 204880.82.136.0/2480.82.137.0/2480.82.138.0/2480.82.139.0/2480.82.140.0/2480.82.141.0/2480.82.142.0/2480.82.143.0/24