What this means
The IEEE assigned the MA-L block E4F365 to Time-O-Matic, 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 E4:F3:65, it is Time-O-Matic, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix E4F365?
E4F365 is registered to Time-O-Matic, 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. Time-O-Matic, Inc.'s block covers 16,777,216 addresses.
What devices use E4F365?
Any network device with a MAC address starting E4:F3:65 was manufactured by or for Time-O-Matic, Inc..