What this means
The IEEE assigned the MA-L block 000961 to Switchgear and Instrumentation Ltd. 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 00:09:61, it is Switchgear and Instrumentation Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 000961?
000961 is registered to Switchgear and Instrumentation Ltd 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. Switchgear and Instrumentation Ltd's block covers 16,777,216 addresses.
What devices use 000961?
Any network device with a MAC address starting 00:09:61 was manufactured by or for Switchgear and Instrumentation Ltd.