AS174 38.129.72.0/21 CIDR and IP Range Summary.ASN: 174 - Cogent CommunicationsHost Count: 2046Addressable IPs: 204838.129.72.0/2438.129.73.0/2438.129.74.0/2438.129.75.0/2438.129.76.0/2438.129.77.0/2438.129.78.0/2438.129.79.0/24