What this means
The IEEE assigned the MA-L block 001A1D to PChome Online 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 00:1A:1D, it is PChome Online Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 001A1D?
001A1D is registered to PChome Online 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. PChome Online Inc.'s block covers 16,777,216 addresses.
What devices use 001A1D?
Any network device with a MAC address starting 00:1A:1D was manufactured by or for PChome Online Inc..