AS17623 58.250.0.0/21 CIDR and IP Range Summary.ASN: 17623 - China Unicom Shenzen networkHost Count: 2046Addressable IPs: 204858.250.0.0/2458.250.1.0/2458.250.2.0/2458.250.3.0/2458.250.4.0/2458.250.5.0/2458.250.6.0/2458.250.7.0/24