What this means
The IEEE assigned the MA-L block 0030E0 to OXFORD SEMICONDUCTOR LTD.. 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 00:30:E0, it is OXFORD SEMICONDUCTOR LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix 0030E0?
0030E0 is registered to OXFORD SEMICONDUCTOR LTD. 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. OXFORD SEMICONDUCTOR LTD.'s block covers 16,777,216 addresses.
What devices use 0030E0?
Any network device with a MAC address starting 00:30:E0 was manufactured by or for OXFORD SEMICONDUCTOR LTD..