AS17621 112.64.64.0/19 CIDR and IP Range Summary.ASN: 17621 - China Unicom Shanghai NetworkHost Count: 8190Addressable IPs: 8192112.64.64.0/24112.64.65.0/24112.64.66.0/24112.64.67.0/24112.64.68.0/24112.64.69.0/24112.64.70.0/24112.64.71.0/24112.64.72.0/24112.64.73.0/24112.64.74.0/24112.64.75.0/24112.64.76.0/24112.64.77.0/24112.64.78.0/24112.64.79.0/24112.64.80.0/24112.64.81.0/24112.64.82.0/24112.64.83.0/24112.64.84.0/24112.64.85.0/24112.64.86.0/24112.64.87.0/24112.64.88.0/24112.64.89.0/24112.64.90.0/24112.64.91.0/24112.64.92.0/24112.64.93.0/24112.64.94.0/24112.64.95.0/24