Who owns MAC prefix 0000D9?

0000D9 is registered to NIPPON TELEGRAPH & TELEPHONE in the IEEE MA-L registry.

What devices use 0000D9?

Any network device with a MAC address starting 00:00:D9 was manufactured by or for NIPPON TELEGRAPH & TELEPHONE.

MA-L · OUI prefix

NIPPON TELEGRAPH & TELEPHONE

Any MAC address starting 00:00:D9 is registered to NIPPON TELEGRAPH & TELEPHONE in JP.

OUI prefix	0000D9
Vendor	NIPPON TELEGRAPH & TELEPHONE
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	00:00:D9:00:00:00

What this means

The IEEE assigned the MA-L block 0000D9 to NIPPON TELEGRAPH & TELEPHONE. 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 00:00:D9, it is NIPPON TELEGRAPH & TELEPHONE hardware.

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