What this means
The IEEE assigned the MA-L block 0001E9 to Litton Marine Systems B.V.. 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 00:01:E9, it is Litton Marine Systems B.V. hardware.
Frequently Asked Questions
Who owns MAC prefix 0001E9?
0001E9 is registered to Litton Marine Systems B.V. 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. Litton Marine Systems B.V.'s block covers 16,777,216 addresses.
What devices use 0001E9?
Any network device with a MAC address starting 00:01:E9 was manufactured by or for Litton Marine Systems B.V..