Devices with MAC addresses that start with EC-4F-82 were manufactured by Calix Inc.

Device ManufacturerCalix Inc.
2777 Orchard Parkway
San Jose CA 95134
Estimated Devices with EC-4F-8216256250
Estimated Total Devices From Mfg81281250
Other MAC Addresses44-65-7F, 00-06-31, CC-BE-59, 48-77-46
Address Examples