70:B3:D5:F3:7 Mitsubishi Electric Micro-Computer Application Software Co.,Ltd.
Every MAC address from 70:B3:D5:F3:70:00 to 70:B3:D5:F3:7F:FF belongs to a block the IEEE assigned to Mitsubishi Electric Micro-Computer Application Software Co.,Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 70:B3:D5:F3:7 belongs to
Written 70:B3:D5:F3:7, 70-B3-D5-F3-7 or 70B3D5F37, depending on the system. Look up a full address.
Prefix
70:B3:D5:F3:7/36
Organization
Mitsubishi Electric Micro-Computer Application Software Co.,Ltd.
Registry
MA-S (36 bits)
Addresses
4,096
First address
70:B3:D5:F3:70:00
Last address
70:B3:D5:F3:7F:FF
Address type
Globally unique, unicast
Registered address
Inadera, 2-5-1 Amagasaki Hyogo JP 661-0981
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.