Dissatisfied with other hosted MAC address OUI vendor lookup tools, I made my own.

Nothing but a search-as-you-type input.

https://oui.so

Also, it works really well with curl:

  $ curl oui.so/b4:b9:e6:28:f1:ab | jq
  [
    {
      "oui": "B4B9E6",
      "name": "eero inc.",
      "address": "660 3rd Street  San Francisco CA US 94107"
    }
  ]