Devices with MAC addresses that start with 00-1B-91 were manufactured by EFKON AG
| Device Manufacturer | EFKON AG Dietrich-Keller-Strasse 20 8074 Raaba |
|---|---|
| Estimated Devices with 00-1B-91 | 16256250 |
| Estimated Total Devices From Mfg | 16256250 |
| Other MAC Addresses | |
| Address Examples |
