Devices with MAC addresses that start with 00-26-66 were manufactured by EFM Networks

Device ManufacturerEFM Networks
6F, Benposra II 1197-1 Bojeong Giheung Gu
Yong In Kyunggi do 446913
Estimated Devices with 00-26-6616256250
Estimated Total Devices From Mfg97537500
Other MAC Addresses64-E5-99, 88-36-6C, 00-08-9F, 70-5D-CC, 90-9F-33
Address Examples