70:B3:D5:64:3 Marques,S.A.
Every MAC address from 70:B3:D5:64:30:00 to 70:B3:D5:64:3F:FF belongs to a block the IEEE assigned to Marques,S.A.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 70:B3:D5:64:3 belongs to
Written 70:B3:D5:64:3, 70-B3-D5-64-3 or 70B3D5643, depending on the system. Look up a full address.
Prefix
70:B3:D5:64:3/36
Organization
Marques,S.A.
Registry
MA-S (36 bits)
Addresses
4,096
First address
70:B3:D5:64:30:00
Last address
70:B3:D5:64:3F:FF
Address type
Globally unique, unicast
Registered address
Zona Industrial da Alagoa - APT 3134 Águeda Aveiro PT 3754-901
Parent block
Inside 70:B3:D5
This MA-S block is carved from the 24-bit block 70:B3:D5, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.