AS133119 220.192.72.0/21 CIDR and IP Range Summary.ASN: 133119 - China Unicom IP NetworkHost Count: 2046Addressable IPs: 2048220.192.72.0/24220.192.73.0/24220.192.74.0/24220.192.75.0/24220.192.76.0/24220.192.77.0/24220.192.78.0/24220.192.79.0/24