AS3257 77.67.40.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 204877.67.40.0/2477.67.41.0/2477.67.42.0/2477.67.43.0/2477.67.44.0/2477.67.45.0/2477.67.46.0/2477.67.47.0/24