What this means
The IEEE assigned the MA-M block 144FD72 to FedEx Services OTI. 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 14:4F:D7:2, it is FedEx Services OTI hardware.
Frequently Asked Questions
Who owns MAC prefix 144FD72?
144FD72 is registered to FedEx Services OTI 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. FedEx Services OTI's block covers 1,048,576 addresses.
What devices use 144FD72?
Any network device with a MAC address starting 14:4F:D7:2 was manufactured by or for FedEx Services OTI.