Who owns MAC prefix 0055B1?

0055B1 is registered to Shanghai Baud Data Communication Co.,Ltd. in the IEEE MA-L registry.

What devices use 0055B1?

Any network device with a MAC address starting 00:55:B1 was manufactured by or for Shanghai Baud Data Communication Co.,Ltd..

MA-L · OUI prefix

Shanghai Baud Data Communication Co.,Ltd.

Any MAC address starting 00:55:B1 is registered to Shanghai Baud Data Communication Co.,Ltd. in CN.

OUI prefix	0055B1
Vendor	Shanghai Baud Data Communication Co.,Ltd.
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	00:55:B1:00:00:00

What this means

The IEEE assigned the MA-L block 0055B1 to Shanghai Baud Data Communication Co.,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 00:55:B1, it is Shanghai Baud Data Communication Co.,Ltd. hardware.

Other Shanghai Baud Data Communication Co.,Ltd. prefixes

Shanghai Baud Data Communication Co.,Ltd. holds 10 registered blocks in total.

00E00F 409249 847973 8481EA 984562 AC128E BC606B F4B0FF FCFAF7

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