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Devices with MAC addresses that start with 30-EF-D1 were manufactured by Alstom Strongwish (Shenzhen) Co., Ltd.

Device ManufacturerAlstom Strongwish (Shenzhen) Co., Ltd.
5F,Building No.6, Keji Middle 2 Road High-Tech Industrial Park,
Shen Zhen Guangdong 518057
Estimated Devices with 30-EF-D116256250
Estimated Total Devices From Mfg16256250
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