AS4837 203.93.144.0/21 CIDR and IP Range Summary.ASN: 4837 - China169-Backbone China Unicom China169 BackboneHost Count: 2046Addressable IPs: 2048203.93.144.0/24203.93.145.0/24203.93.146.0/24203.93.147.0/24203.93.148.0/24203.93.149.0/24203.93.150.0/24203.93.151.0/24