AS3257 217.207.0.0/19 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 8190Addressable IPs: 8192217.207.0.0/24217.207.1.0/24217.207.2.0/24217.207.3.0/24217.207.4.0/24217.207.5.0/24217.207.6.0/24217.207.7.0/24217.207.8.0/24217.207.9.0/24217.207.10.0/24217.207.11.0/24217.207.12.0/24217.207.13.0/24217.207.14.0/24217.207.15.0/24217.207.16.0/24217.207.17.0/24217.207.18.0/24217.207.19.0/24217.207.20.0/24217.207.21.0/24217.207.22.0/24217.207.23.0/24217.207.24.0/24217.207.25.0/24217.207.26.0/24217.207.27.0/24217.207.28.0/24217.207.29.0/24217.207.30.0/24217.207.31.0/24