Who owns MAC prefix 90A9F7D?

90A9F7D is registered to Shanghai Jiehezhi Technology Co., Ltd. in the IEEE MA-M registry.

What devices use 90A9F7D?

Any network device with a MAC address starting 90:A9:F7:D was manufactured by or for Shanghai Jiehezhi Technology Co., Ltd..

MA-M · OUI prefix

Shanghai Jiehezhi Technology Co., Ltd.

Any MAC address starting 90:A9:F7:D is registered to Shanghai Jiehezhi Technology Co., Ltd. in CN.

OUI prefix	90A9F7D
Vendor	Shanghai Jiehezhi Technology Co., Ltd.
Registry	MA-M (28-bit, medium block)
Country	CN
Example MAC	90:A9:F7:D:00:00:00

What this means

The IEEE assigned the MA-M block 90A9F7D to Shanghai Jiehezhi Technology 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 90:A9:F7:D, it is Shanghai Jiehezhi Technology Co., Ltd. hardware.

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