Devices with MAC addresses that start with 80-4B-20 were manufactured by Ventilation Control

Device Manufacturer
Ventilation Control
Manufacturer Location
Kronenstrasse 34
Villingen-Schwenningen Baden-Wuerttemberg 78054
Estimated Devices using 80-4B-20
16,256,250
Estimated Total Devices From Mfg
16,256,250
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