Devices with MAC addresses that start with B4-E1-C4 were manufactured by Microsoft Mobile Oy

Device Manufacturer
Microsoft Mobile Oy
Manufacturer Location
Keilalahdentie 4
Espoo 02150
Estimated Devices using B4-E1-C4
16,256,250
Estimated Total Devices From Mfg
178,818,750
Related MAC Addresses
38-F2-3E, 38-25-6B, 30-0D-43, 6C-27-79, 60-7E-DD, 6C-8F-B5, 6C-24-83, A4-51-6F, E4-98-D1, 5C-CA-1A