PrismKitNetworkMAC Address LookupMAC Address LookupRuns in your browserLocalCopy linkMarkdownLook up the hardware vendor registered to a MAC address or OUI prefix.MAC Address GeneratorGenerate one or many random MAC addresses with a fixed prefix, case, and separator of your choosing.SPF & DMARC Record GeneratorBuild SPF and DMARC TXT records for your domain, with a lookup counter and a ready-to-paste zone file line.