AS174 208.28.136.0/21 CIDR and IP Range Summary.ASN: 174 - Cogent CommunicationsHost Count: 2046Addressable IPs: 2048208.28.136.0/24208.28.137.0/24208.28.138.0/24208.28.139.0/24208.28.140.0/24208.28.141.0/24208.28.142.0/24208.28.143.0/24