AS3257 85.189.72.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 204885.189.72.0/2485.189.73.0/2485.189.74.0/2485.189.75.0/2485.189.76.0/2485.189.77.0/2485.189.78.0/2485.189.79.0/24