A4:ED:43:E TOEC TECHNOLOGY CO.，LTD.
Every MAC address from A4:ED:43:E0:00:00 to A4:ED:43:EF:FF:FF belongs to a block the IEEE assigned to TOEC TECHNOLOGY CO.，LTD.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who A4:ED:43:E belongs to
Written A4:ED:43:E, A4-ED-43-E or A4ED43E, depending on the system. Look up a full address.
Prefix
A4:ED:43:E/28
Organization
TOEC TECHNOLOGY CO.，LTD.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
A4:ED:43:E0:00:00
Last address
A4:ED:43:EF:FF:FF
Address type
Globally unique, unicast
Registered address
6 Taishan Road Hexi District Tianjin China Tian Jin Tian Jin CN 300211
Parent block
Inside A4:ED:43
This MA-M block is carved from the 24-bit block A4:ED:43, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.