What this means
The IEEE assigned the MA-L block D49477 to FONEX Data 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 D4:94:77, it is FONEX Data Systems Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix D49477?
D49477 is registered to FONEX Data 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. FONEX Data Systems Inc.'s block covers 16,777,216 addresses.
What devices use D49477?
Any network device with a MAC address starting D4:94:77 was manufactured by or for FONEX Data Systems Inc..