AS3257 135.196.232.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 2048135.196.232.0/24135.196.233.0/24135.196.234.0/24135.196.235.0/24135.196.236.0/24135.196.237.0/24135.196.238.0/24135.196.239.0/24