What this means
The IEEE assigned the MA-M block 801D0D8 to CRESTCHIC (UK) LIMITED. 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 80:1D:0D:8, it is CRESTCHIC (UK) LIMITED hardware.
Frequently Asked Questions
Who owns MAC prefix 801D0D8?
801D0D8 is registered to CRESTCHIC (UK) LIMITED in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. CRESTCHIC (UK) LIMITED's block covers 1,048,576 addresses.
What devices use 801D0D8?
Any network device with a MAC address starting 80:1D:0D:8 was manufactured by or for CRESTCHIC (UK) LIMITED.