AS4808 123.103.16.0/21 CIDR and IP Range Summary.ASN: 4808 - China169-BJ China Unicom Beijing Province NetworkHost Count: 2046Addressable IPs: 2048123.103.16.0/24123.103.17.0/24123.103.18.0/24123.103.19.0/24123.103.20.0/24123.103.21.0/24123.103.22.0/24123.103.23.0/24