AS4538 211.81.64.0/21 CIDR and IP Range Summary.ASN: 4538 - Asia Pacific Network Information CentreHost Count: 2046Addressable IPs: 2048211.81.64.0/24211.81.65.0/24211.81.66.0/24211.81.67.0/24211.81.68.0/24211.81.69.0/24211.81.70.0/24211.81.71.0/24