What this means
The IEEE assigned the MA-M block 38FDFE5 to CaptiveAire Systems 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 38:FD:FE:5, it is CaptiveAire Systems Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 38FDFE5?
38FDFE5 is registered to CaptiveAire Systems Inc. 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. CaptiveAire Systems Inc.'s block covers 1,048,576 addresses.
What devices use 38FDFE5?
Any network device with a MAC address starting 38:FD:FE:5 was manufactured by or for CaptiveAire Systems Inc..