AS4134 121.228.216.0/21 CIDR and IP Range Summary.ASN: 4134 - Asia Pacific Network Information CentreHost Count: 2046Addressable IPs: 2048121.228.216.0/24121.228.217.0/24121.228.218.0/24121.228.219.0/24121.228.220.0/24121.228.221.0/24121.228.222.0/24121.228.223.0/24