AS3257 64.81.112.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 204864.81.112.0/2464.81.113.0/2464.81.114.0/2464.81.115.0/2464.81.116.0/2464.81.117.0/2464.81.118.0/2464.81.119.0/24