Devices with MAC addresses that start with B4-B1-5A were manufactured by Siemens AG Energy Management Division

Device Manufacturer
Siemens AG Energy Management Division
Manufacturer Location
Humboldtstr. 59
Nurnberg Bavaria 90459
Estimated Devices using B4-B1-5A
16,256,250
Estimated Total Devices From Mfg
16,256,250
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