Who owns MAC prefix 00139F?

00139F is registered to Electronics Design Services, Co., Ltd. in the IEEE MA-L registry.

What devices use 00139F?

Any network device with a MAC address starting 00:13:9F was manufactured by or for Electronics Design Services, Co., Ltd..

MA-L · OUI prefix

Electronics Design Services, Co., Ltd.

Any MAC address starting 00:13:9F is registered to Electronics Design Services, Co., Ltd. in JP.

OUI prefix	00139F
Vendor	Electronics Design Services, Co., Ltd.
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	00:13:9F:00:00:00

What this means

The IEEE assigned the MA-L block 00139F to Electronics Design Services, 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 00:13:9F, it is Electronics Design Services, Co., Ltd. hardware.

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