AS3399 178.132.72.0/21 CIDR and IP Range Summary.ASN: 3399 - Obenetwork ABHost Count: 2046Addressable IPs: 2048178.132.72.0/24178.132.73.0/24178.132.74.0/24178.132.75.0/24178.132.76.0/24178.132.77.0/24178.132.78.0/24178.132.79.0/24