AS3257 64.81.32.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 204864.81.32.0/2464.81.33.0/2464.81.34.0/2464.81.35.0/2464.81.36.0/2464.81.37.0/2464.81.38.0/2464.81.39.0/24