Who owns MAC prefix 78321B?

78321B is registered to D-Link International in the IEEE MA-L registry.

What devices use 78321B?

Any network device with a MAC address starting 78:32:1B was manufactured by or for D-Link International.

MA-L · OUI prefix

D-Link International

Any MAC address starting 78:32:1B is registered to D-Link International in SG.

OUI prefix	78321B
Vendor	D-Link International
Registry	MA-L (24-bit, large block)
Country	SG
Example MAC	78:32:1B:00:00:00

What this means

The IEEE assigned the MA-L block 78321B to D-Link International. 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 78:32:1B, it is D-Link International hardware.

Other D-Link International prefixes

D-Link International holds 60 registered blocks in total.

00AD24 085A11 0C0E76 0CB6D2 1062EB 10BEF5 14D64D 180F76 1C5F2B 1C7EE5 1CAFF7 1CBDB9 all 60 »

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