What this means
The IEEE assigned the MA-L block 08003E to CODEX CORPORATION. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 08:00:3E, it is CODEX CORPORATION hardware.
Frequently Asked Questions
Who owns MAC prefix 08003E?
08003E is registered to CODEX CORPORATION in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. CODEX CORPORATION's block covers 16,777,216 addresses.
What devices use 08003E?
Any network device with a MAC address starting 08:00:3E was manufactured by or for CODEX CORPORATION.