84:89:EC:1 Research Electronics International, LLC.
Every MAC address from 84:89:EC:10:00:00 to 84:89:EC:1F:FF:FF belongs to a block the IEEE assigned to Research Electronics International, LLC.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 84:89:EC:1 belongs to
Written 84:89:EC:1, 84-89-EC-1 or 8489EC1, depending on the system. Look up a full address.
Prefix
84:89:EC:1/28
Organization
Research Electronics International, LLC.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
84:89:EC:10:00:00
Last address
84:89:EC:1F:FF:FF
Address type
Globally unique, unicast
Registered address
455 Secuity Drive Cookeville TN US 38506
Parent block
Inside 84:89:EC
This MA-M block is carved from the 24-bit block 84:89:EC, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.