AS3257 66.166.13.16/28 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 14Addressable IPs: 16 66.166.13.1766.166.13.1866.166.13.1966.166.13.2066.166.13.2166.166.13.2266.166.13.2366.166.13.2466.166.13.2566.166.13.2666.166.13.2766.166.13.2866.166.13.2966.166.13.3066.166.13.3166.166.13.32