70:B3:D5:21:2 Semiconsoft, inc
Every MAC address from 70:B3:D5:21:20:00 to 70:B3:D5:21:2F:FF belongs to a block the IEEE assigned to Semiconsoft, inc. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 70:B3:D5:21:2 belongs to
Written 70:B3:D5:21:2, 70-B3-D5-21-2 or 70B3D5212, depending on the system. Look up a full address.
Prefix
70:B3:D5:21:2/36
Organization
Semiconsoft, inc
Registry
MA-S (36 bits)
Addresses
4,096
First address
70:B3:D5:21:20:00
Last address
70:B3:D5:21:2F:FF
Address type
Globally unique, unicast
Registered address
83 PINE HILL RD SOUTHBOROUGH MA US 01772
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.