AS3527 165.112.128.0/21 CIDR and IP Range Summary.ASN: 3527 - National Institutes of HealthHost Count: 2046Addressable IPs: 2048165.112.128.0/24165.112.129.0/24165.112.130.0/24165.112.131.0/24165.112.132.0/24165.112.133.0/24165.112.134.0/24165.112.135.0/24