AS3257 64.81.158.176/28 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 14Addressable IPs: 16 64.81.158.17764.81.158.17864.81.158.17964.81.158.18064.81.158.18164.81.158.18264.81.158.18364.81.158.18464.81.158.18564.81.158.18664.81.158.18764.81.158.18864.81.158.18964.81.158.19064.81.158.19164.81.158.192