Who owns MAC prefix 04585D5?

04585D5 is registered to Sercomm Japan Corporation in the IEEE MA-M registry.

What devices use 04585D5?

Any network device with a MAC address starting 04:58:5D:5 was manufactured by or for Sercomm Japan Corporation.

MA-M · OUI prefix

Sercomm Japan Corporation

Any MAC address starting 04:58:5D:5 is registered to Sercomm Japan Corporation in TW.

OUI prefix	04585D5
Vendor	Sercomm Japan Corporation
Registry	MA-M (28-bit, medium block)
Country	TW
Example MAC	04:58:5D:5:00:00:00

What this means

The IEEE assigned the MA-M block 04585D5 to Sercomm Japan 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 04:58:5D:5, it is Sercomm Japan Corporation hardware.

Other Sercomm Japan Corporation prefixes

Sercomm Japan Corporation holds 4 registered blocks in total.

18EFC0 4CFBFE 7425849

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