70:B3:D5:61:C0:00 to 70:B3:D5:61:CF:FF

Earth Works

MA-SJapan4,096 addresses
Inspect this prefix

Registered address

2-9-14 Aioi
Kofu Yamanashi 400-0858
Japan

Block details

Registry
MA-S, MAC Address Block Small (OUI-36)
Prefix
70:B3:D5:61:C /36
Addresses in block
4,096
Decimal range
123,917,681,410,048 to 123,917,681,414,143
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:D5:61:C0:00 and 70:B3:D5:61:CF: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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