What this means
The IEEE assigned the MA-L block 001F22 to Source Photonics, Inc.. 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 00:1F:22, it is Source Photonics, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 001F22?
001F22 is registered to Source Photonics, Inc. 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. Source Photonics, Inc.'s block covers 16,777,216 addresses.
What devices use 001F22?
Any network device with a MAC address starting 00:1F:22 was manufactured by or for Source Photonics, Inc..