AS3257 216.133.0.0/18 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 16382Addressable IPs: 16384216.133.0.0/24216.133.1.0/24216.133.2.0/24216.133.3.0/24216.133.4.0/24216.133.5.0/24216.133.6.0/24216.133.7.0/24216.133.8.0/24216.133.9.0/24216.133.10.0/24216.133.11.0/24216.133.12.0/24216.133.13.0/24216.133.14.0/24216.133.15.0/24216.133.16.0/24216.133.17.0/24216.133.18.0/24216.133.19.0/24216.133.20.0/24216.133.21.0/24216.133.22.0/24216.133.23.0/24216.133.24.0/24216.133.25.0/24216.133.26.0/24216.133.27.0/24216.133.28.0/24216.133.29.0/24216.133.30.0/24216.133.31.0/24216.133.32.0/24216.133.33.0/24216.133.34.0/24216.133.35.0/24216.133.36.0/24216.133.37.0/24216.133.38.0/24216.133.39.0/24216.133.40.0/24216.133.41.0/24216.133.42.0/24216.133.43.0/24216.133.44.0/24216.133.45.0/24216.133.46.0/24216.133.47.0/24216.133.48.0/24216.133.49.0/24216.133.50.0/24216.133.51.0/24216.133.52.0/24216.133.53.0/24216.133.54.0/24216.133.55.0/24216.133.56.0/24216.133.57.0/24216.133.58.0/24216.133.59.0/24216.133.60.0/24216.133.61.0/24216.133.62.0/24216.133.63.0/24