AS3257 135.196.144.0/20 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 4094Addressable IPs: 4096135.196.144.0/24135.196.145.0/24135.196.146.0/24135.196.147.0/24135.196.148.0/24135.196.149.0/24135.196.150.0/24135.196.151.0/24135.196.152.0/24135.196.153.0/24135.196.154.0/24135.196.155.0/24135.196.156.0/24135.196.157.0/24135.196.158.0/24135.196.159.0/24