AS521 19.12.56.0/21 CIDR and IP Range Summary.ASN: 521 - Ford Motor CompanyHost Count: 2046Addressable IPs: 204819.12.56.0/2419.12.57.0/2419.12.58.0/2419.12.59.0/2419.12.60.0/2419.12.61.0/2419.12.62.0/2419.12.63.0/24