68:91:D0:4 G-TECH Instruments Inc.
Every MAC address from 68:91:D0:40:00:00 to 68:91:D0:4F:FF:FF belongs to a block the IEEE assigned to G-TECH Instruments Inc.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 68:91:D0:4 belongs to
Written 68:91:D0:4, 68-91-D0-4 or 6891D04, depending on the system. Look up a full address.
Prefix
68:91:D0:4/28
Organization
G-TECH Instruments Inc.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
68:91:D0:40:00:00
Last address
68:91:D0:4F:FF:FF
Address type
Globally unique, unicast
Registered address
2F.-2, No.83, Sec. 2, Gongdao 5th Rd., East Dist. Hsinchu TW 30070
Parent block
Inside 68:91:D0
This MA-M block is carved from the 24-bit block 68:91:D0, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.