AS3257 68.64.137.176/28 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 14Addressable IPs: 16 68.64.137.17768.64.137.17868.64.137.17968.64.137.18068.64.137.18168.64.137.18268.64.137.18368.64.137.18468.64.137.18568.64.137.18668.64.137.18768.64.137.18868.64.137.18968.64.137.19068.64.137.19168.64.137.192