AS3257 66.7.146.40/29 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 6Addressable IPs: 8 66.7.146.4166.7.146.4266.7.146.4366.7.146.4466.7.146.4566.7.146.4666.7.146.4766.7.146.48