NET TEK AND KARLNET, INC.
Any device whose MAC address begins with 00:20:F6 has a network interface built by NET TEK AND KARLNET, 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
- 00:20:F6
- Organization
- NET TEK AND KARLNET, INC.
- Address
- LITTLE STREAMS UNITED GB KINGDOM
- 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 "NET TEK AND KARLNET, INC."