AS16662 156.71.152.0/21 CIDR and IP Range Summary.ASN: 16662 - AstraZeneca Pharmaceuticals LPHost Count: 2046Addressable IPs: 2048156.71.152.0/24156.71.153.0/24156.71.154.0/24156.71.155.0/24156.71.156.0/24156.71.157.0/24156.71.158.0/24156.71.159.0/24