A. S. Thomas, Inc.
Any device whose MAC address begins with 08:18:4C has a network interface built by A. S. Thomas, Inc.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.
- OUI prefix
- 08:18:4C
- Organization
- A. S. Thomas, Inc.
- Address
- 355 Providence Hwy Westwood MA US 02090
- 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 "A. S. Thomas, Inc."