Who owns MAC prefix 583277?

583277 is registered to Reliance Communications LLC in the IEEE MA-L registry.

What devices use 583277?

Any network device with a MAC address starting 58:32:77 was manufactured by or for Reliance Communications LLC.

MA-L · OUI prefix

Reliance Communications LLC

Any MAC address starting 58:32:77 is registered to Reliance Communications LLC in US.

OUI prefix	583277
Vendor	Reliance Communications LLC
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	58:32:77:00:00:00

What this means

The IEEE assigned the MA-L block 583277 to Reliance Communications LLC. 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 58:32:77, it is Reliance Communications LLC hardware.

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