Devices with MAC addresses that start with 00-19-92 were manufactured by Adtran Inc

Device ManufacturerAdtran Inc
901 Explorer Blvd.
Huntsville AL 35806-2807
Estimated Devices with 00-19-9216256250
Estimated Total Devices From Mfg65025000
Other MAC Addresses00-01-4F, 00-24-45, 00-A0-C8
Address Examples