70:B3:D5:21:20:00 to 70:B3:D5:21:2F:FF

Semiconsoft, inc

MA-SUnited States4,096 addresses
Inspect this prefix

Registered address

83 PINE HILL RD
SOUTHBOROUGH MA 01772
United States

Block details

Registry
MA-S, MAC Address Block Small (OUI-36)
Prefix
70:B3:D5:21:2 /36
Addresses in block
4,096
Decimal range
123,917,677,174,784 to 123,917,677,178,879
Address type
Unicast, universally administered

What this block covers

A 36 bit block, the smallest the IEEE sells. Suited to low volume products that will never ship 4096 units of anything.

Any MAC address between 70:B3:D5:21:20:00 and 70:B3:D5:21:2F:FF belongs to this assignment. The registrant chooses the remaining 12 bits, so the same prefix can appear on very different products from the same company.

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