AS3257 194.77.56.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 2048194.77.56.0/24194.77.57.0/24194.77.58.0/24194.77.59.0/24194.77.60.0/24194.77.61.0/24194.77.62.0/24194.77.63.0/24