AS174 38.129.136.0/21 CIDR and IP Range Summary.ASN: 174 - Cogent CommunicationsHost Count: 2046Addressable IPs: 204838.129.136.0/2438.129.137.0/2438.129.138.0/2438.129.139.0/2438.129.140.0/2438.129.141.0/2438.129.142.0/2438.129.143.0/24