Who owns MAC prefix 000D3F?

000D3F is registered to VTI Instruments Corporation in the IEEE MA-L registry.

What devices use 000D3F?

Any network device with a MAC address starting 00:0D:3F was manufactured by or for VTI Instruments Corporation.

MA-L · OUI prefix

VTI Instruments Corporation

Any MAC address starting 00:0D:3F is registered to VTI Instruments Corporation in US.

OUI prefix	000D3F
Vendor	VTI Instruments Corporation
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:0D:3F:00:00:00

What this means

The IEEE assigned the MA-L block 000D3F to VTI Instruments 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 00:0D:3F, it is VTI Instruments Corporation hardware.

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