AS10006 121.50.56.0/21 CIDR and IP Range Summary.ASN: 10006 - Secom Trust Systems Co. Ltd.Host Count: 2046Addressable IPs: 2048121.50.56.0/24121.50.57.0/24121.50.58.0/24121.50.59.0/24121.50.60.0/24121.50.61.0/24121.50.62.0/24121.50.63.0/24