AS10099 121.91.88.0/21 CIDR and IP Range Summary.ASN: 10099 - China Unicom GlobalHost Count: 2046Addressable IPs: 2048121.91.88.0/24121.91.89.0/24121.91.90.0/24121.91.91.0/24121.91.92.0/24121.91.93.0/24121.91.94.0/24121.91.95.0/24