AS3257 66.166.32.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 204866.166.32.0/2466.166.33.0/2466.166.34.0/2466.166.35.0/2466.166.36.0/2466.166.37.0/2466.166.38.0/2466.166.39.0/24