Who owns MAC prefix 00033F?

00033F is registered to BigBand Networks, Ltd. in the IEEE MA-L registry.

What devices use 00033F?

Any network device with a MAC address starting 00:03:3F was manufactured by or for BigBand Networks, Ltd..

MA-L · OUI prefix

BigBand Networks, Ltd.

Any MAC address starting 00:03:3F is registered to BigBand Networks, Ltd. in IL.

OUI prefix	00033F
Vendor	BigBand Networks, Ltd.
Registry	MA-L (24-bit, large block)
Country	IL
Example MAC	00:03:3F:00:00:00

What this means

The IEEE assigned the MA-L block 00033F to BigBand Networks, 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 00:03:3F, it is BigBand Networks, Ltd. hardware.

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