AS4808 211.103.144.0/21 CIDR and IP Range Summary.ASN: 4808 - China169-BJ China Unicom Beijing Province NetworkHost Count: 2046Addressable IPs: 2048211.103.144.0/24211.103.145.0/24211.103.146.0/24211.103.147.0/24211.103.148.0/24211.103.149.0/24211.103.150.0/24211.103.151.0/24