AS17621 140.207.192.0/20 CIDR and IP Range Summary.ASN: 17621 - China Unicom Shanghai NetworkHost Count: 4094Addressable IPs: 4096140.207.192.0/24140.207.193.0/24140.207.194.0/24140.207.195.0/24140.207.196.0/24140.207.197.0/24140.207.198.0/24140.207.199.0/24140.207.200.0/24140.207.201.0/24140.207.202.0/24140.207.203.0/24140.207.204.0/24140.207.205.0/24140.207.206.0/24140.207.207.0/24