What this means
The IEEE assigned the MA-L block B89919 to 7signal Solutions, 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 B8:99:19, it is 7signal Solutions, Inc hardware.
Frequently Asked Questions
Who owns MAC prefix B89919?
B89919 is registered to 7signal Solutions, 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. 7signal Solutions, Inc's block covers 16,777,216 addresses.
What devices use B89919?
Any network device with a MAC address starting B8:99:19 was manufactured by or for 7signal Solutions, Inc.