AS4134 221.237.152.0/21 CIDR and IP Range Summary.ASN: 4134 - Asia Pacific Network Information CentreHost Count: 2046Addressable IPs: 2048221.237.152.0/24221.237.153.0/24221.237.154.0/24221.237.155.0/24221.237.156.0/24221.237.157.0/24221.237.158.0/24221.237.159.0/24