78:72:64:5 CALTTA TECHNOLOGIES CO.,LTD.
Every MAC address from 78:72:64:50:00:00 to 78:72:64:5F:FF:FF belongs to a block the IEEE assigned to CALTTA TECHNOLOGIES CO.,LTD.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 78:72:64:5 belongs to
Written 78:72:64:5, 78-72-64-5 or 7872645, depending on the system. Look up a full address.
Prefix
78:72:64:5/28
Organization
CALTTA TECHNOLOGIES CO.,LTD.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
78:72:64:50:00:00
Last address
78:72:64:5F:FF:FF
Address type
Globally unique, unicast
Registered address
Building G2, International E-City, Nanshan District, ShenZhen Guangdong CN 518052
Parent block
Inside 78:72:64
This MA-M block is carved from the 24-bit block 78:72:64, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.