What this means
The IEEE assigned the MA-L block 001250 to Tokyo Aircaft Instrument Co., Ltd.. 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 00:12:50, it is Tokyo Aircaft Instrument Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 001250?
001250 is registered to Tokyo Aircaft Instrument Co., Ltd. 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. Tokyo Aircaft Instrument Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 001250?
Any network device with a MAC address starting 00:12:50 was manufactured by or for Tokyo Aircaft Instrument Co., Ltd..