AS3257 198.144.112.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 2048198.144.112.0/24198.144.113.0/24198.144.114.0/24198.144.115.0/24198.144.116.0/24198.144.117.0/24198.144.118.0/24198.144.119.0/24