AS4538 219.220.184.0/21 CIDR and IP Range Summary.ASN: 4538 - Asia Pacific Network Information CentreHost Count: 2046Addressable IPs: 2048219.220.184.0/24219.220.185.0/24219.220.186.0/24219.220.187.0/24219.220.188.0/24219.220.189.0/24219.220.190.0/24219.220.191.0/24