Who owns MAC prefix 503A0F?

503A0F is registered to ALL Winner (Hong Kong) Limited in the IEEE MA-L registry.

What devices use 503A0F?

Any network device with a MAC address starting 50:3A:0F was manufactured by or for ALL Winner (Hong Kong) Limited.

MA-L · OUI prefix

ALL Winner (Hong Kong) Limited

Any MAC address starting 50:3A:0F is registered to ALL Winner (Hong Kong) Limited in CN.

OUI prefix	503A0F
Vendor	ALL Winner (Hong Kong) Limited
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	50:3A:0F:00:00:00

What this means

The IEEE assigned the MA-L block 503A0F to ALL Winner (Hong Kong) Limited. 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 50:3A:0F, it is ALL Winner (Hong Kong) Limited hardware.

Other ALL Winner (Hong Kong) Limited prefixes

ALL Winner (Hong Kong) Limited holds 5 registered blocks in total.

382A8C 50D1D7 6CB077 807484

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