AS3257 66.92.144.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 204866.92.144.0/2466.92.145.0/2466.92.146.0/2466.92.147.0/2466.92.148.0/2466.92.149.0/2466.92.150.0/2466.92.151.0/24