What this means
The IEEE assigned the MA-L block 00138B to Phantom Technologies LLC. 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 00:13:8B, it is Phantom Technologies LLC hardware.
Frequently Asked Questions
Who owns MAC prefix 00138B?
00138B is registered to Phantom Technologies LLC 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. Phantom Technologies LLC's block covers 16,777,216 addresses.
What devices use 00138B?
Any network device with a MAC address starting 00:13:8B was manufactured by or for Phantom Technologies LLC.