Who owns MAC prefix 0C73EB4?

0C73EB4 is registered to U-PASS.CO.,LTD in the IEEE MA-M registry.

What devices use 0C73EB4?

Any network device with a MAC address starting 0C:73:EB:4 was manufactured by or for U-PASS.CO.,LTD.

MA-M · OUI prefix

U-PASS.CO.,LTD

Any MAC address starting 0C:73:EB:4 is registered to U-PASS.CO.,LTD in KR.

OUI prefix	0C73EB4
Vendor	U-PASS.CO.,LTD
Registry	MA-M (28-bit, medium block)
Country	KR
Example MAC	0C:73:EB:4:00:00:00

What this means

The IEEE assigned the MA-M block 0C73EB4 to U-PASS.CO.,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 0C:73:EB:4, it is U-PASS.CO.,LTD hardware.

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