What this means
The IEEE assigned the MA-L block 0022E5 to Fisher-Rosemount 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 00:22:E5, it is Fisher-Rosemount Systems Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 0022E5?
0022E5 is registered to Fisher-Rosemount Systems 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. Fisher-Rosemount Systems Inc.'s block covers 16,777,216 addresses.
What devices use 0022E5?
Any network device with a MAC address starting 00:22:E5 was manufactured by or for Fisher-Rosemount Systems Inc..