The Will-Burt Company
Any device whose MAC address begins with 78:49:1D has a network interface built by The Will-Burt Company. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.
- OUI prefix
- 78:49:1D
- Organization
- The Will-Burt Company
- Address
- 169 S. Main St. Orrivlle Ohio US 44667
- Source
- IEEE OUI registry
Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.
Assignment history (1)
The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.
- 2026-07-17Assigned to "The Will-Burt Company"