AS3257 45.137.30.144/29 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 6Addressable IPs: 8 45.137.30.14545.137.30.14645.137.30.14745.137.30.14845.137.30.14945.137.30.15045.137.30.15145.137.30.152