AS174 154.21.64.0/20 CIDR and IP Range Summary.ASN: 174 - Cogent CommunicationsHost Count: 4094Addressable IPs: 4096154.21.64.0/24154.21.65.0/24154.21.66.0/24154.21.67.0/24154.21.68.0/24154.21.69.0/24154.21.70.0/24154.21.71.0/24154.21.72.0/24154.21.73.0/24154.21.74.0/24154.21.75.0/24154.21.76.0/24154.21.77.0/24154.21.78.0/24154.21.79.0/24