Who owns MAC prefix 507B91?

507B91 is registered to Sigmastar Technology Ltd. in the IEEE MA-L registry.

What devices use 507B91?

Any network device with a MAC address starting 50:7B:91 was manufactured by or for Sigmastar Technology Ltd..

MA-L · OUI prefix

Sigmastar Technology Ltd.

Any MAC address starting 50:7B:91 is registered to Sigmastar Technology Ltd. in CN.

OUI prefix	507B91
Vendor	Sigmastar Technology Ltd.
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	50:7B:91:00:00:00

What this means

The IEEE assigned the MA-L block 507B91 to Sigmastar Technology 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 50:7B:91, it is Sigmastar Technology Ltd. hardware.

Other Sigmastar Technology Ltd. prefixes

Sigmastar Technology Ltd. holds 4 registered blocks in total.

009D85 14C9CF D07CB2

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