AS15073 165.253.152.0/21 CIDR and IP Range Summary.ASN: 15073 - Blue Shield of CaliforniaHost Count: 2046Addressable IPs: 2048165.253.152.0/24165.253.153.0/24165.253.154.0/24165.253.155.0/24165.253.156.0/24165.253.157.0/24165.253.158.0/24165.253.159.0/24