Who owns MAC prefix 0019B1?

0019B1 is registered to Arrow7 Corporation in the IEEE MA-L registry.

What devices use 0019B1?

Any network device with a MAC address starting 00:19:B1 was manufactured by or for Arrow7 Corporation.

MA-L · OUI prefix

Arrow7 Corporation

Any MAC address starting 00:19:B1 is registered to Arrow7 Corporation in JP.

OUI prefix	0019B1
Vendor	Arrow7 Corporation
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	00:19:B1:00:00:00

What this means

The IEEE assigned the MA-L block 0019B1 to Arrow7 Corporation. 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 00:19:B1, it is Arrow7 Corporation hardware.

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