AS3257 74.2.16.0/20 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 4094Addressable IPs: 409674.2.16.0/2474.2.17.0/2474.2.18.0/2474.2.19.0/2474.2.20.0/2474.2.21.0/2474.2.22.0/2474.2.23.0/2474.2.24.0/2474.2.25.0/2474.2.26.0/2474.2.27.0/2474.2.28.0/2474.2.29.0/2474.2.30.0/2474.2.31.0/24