AS3257 173.205.16.0/20 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 4094Addressable IPs: 4096173.205.16.0/24173.205.17.0/24173.205.18.0/24173.205.19.0/24173.205.20.0/24173.205.21.0/24173.205.22.0/24173.205.23.0/24173.205.24.0/24173.205.25.0/24173.205.26.0/24173.205.27.0/24173.205.28.0/24173.205.29.0/24173.205.30.0/24173.205.31.0/24