AS521 19.12.64.0/21 CIDR and IP Range Summary.ASN: 521 - Ford Motor CompanyHost Count: 2046Addressable IPs: 204819.12.64.0/2419.12.65.0/2419.12.66.0/2419.12.67.0/2419.12.68.0/2419.12.69.0/2419.12.70.0/2419.12.71.0/24