AS3257 66.167.168.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 204866.167.168.0/2466.167.169.0/2466.167.170.0/2466.167.171.0/2466.167.172.0/2466.167.173.0/2466.167.174.0/2466.167.175.0/24