What this means
The IEEE assigned the MA-L block 00903E to N.V. PHILIPS INDUSTRIAL ACTIVITIES. 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 00:90:3E, it is N.V. PHILIPS INDUSTRIAL ACTIVITIES hardware.
Frequently Asked Questions
Who owns MAC prefix 00903E?
00903E is registered to N.V. PHILIPS INDUSTRIAL ACTIVITIES 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. N.V. PHILIPS INDUSTRIAL ACTIVITIES's block covers 16,777,216 addresses.
What devices use 00903E?
Any network device with a MAC address starting 00:90:3E was manufactured by or for N.V. PHILIPS INDUSTRIAL ACTIVITIES.