What this means
The IEEE assigned the MA-L block 0015B4 to Polymap Wireless 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 00:15:B4, it is Polymap Wireless LLC hardware.
Frequently Asked Questions
Who owns MAC prefix 0015B4?
0015B4 is registered to Polymap Wireless 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. Polymap Wireless LLC's block covers 16,777,216 addresses.
What devices use 0015B4?
Any network device with a MAC address starting 00:15:B4 was manufactured by or for Polymap Wireless LLC.