What this means
The IEEE assigned the MA-L block 30F77F to S Mobile Devices Limited. 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 30:F7:7F, it is S Mobile Devices Limited hardware.
Frequently Asked Questions
Who owns MAC prefix 30F77F?
30F77F is registered to S Mobile Devices Limited 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. S Mobile Devices Limited's block covers 16,777,216 addresses.
What devices use 30F77F?
Any network device with a MAC address starting 30:F7:7F was manufactured by or for S Mobile Devices Limited.