What this means
The IEEE assigned the MA-L block 0030B7 to Teletrol 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 00:30:B7, it is Teletrol Systems, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 0030B7?
0030B7 is registered to Teletrol 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. Teletrol Systems, Inc.'s block covers 16,777,216 addresses.
What devices use 0030B7?
Any network device with a MAC address starting 00:30:B7 was manufactured by or for Teletrol Systems, Inc..