AS3257 66.253.80.88/29 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 6Addressable IPs: 8 66.253.80.8966.253.80.9066.253.80.9166.253.80.9266.253.80.9366.253.80.9466.253.80.9566.253.80.96