AS1221 203.100.224.0/19 CIDR and IP Range Summary.ASN: 1221 - Asia Pacific Network Information CentreHost Count: 8190Addressable IPs: 8192203.100.224.0/24203.100.225.0/24203.100.226.0/24203.100.227.0/24203.100.228.0/24203.100.229.0/24203.100.230.0/24203.100.231.0/24203.100.232.0/24203.100.233.0/24203.100.234.0/24203.100.235.0/24203.100.236.0/24203.100.237.0/24203.100.238.0/24203.100.239.0/24203.100.240.0/24203.100.241.0/24203.100.242.0/24203.100.243.0/24203.100.244.0/24203.100.245.0/24203.100.246.0/24203.100.247.0/24203.100.248.0/24203.100.249.0/24203.100.250.0/24203.100.251.0/24203.100.252.0/24203.100.253.0/24203.100.254.0/24203.100.255.0/24