70:B3:D5:89:B0:00 to 70:B3:D5:89:BF:FF

ControlWorks, Inc.

MA-SSouth Korea4,096 addresses
Inspect this prefix

Registered address

Jinil Bldg. Suite401, 13 Eonju-ro 81 gil, Gangnam-gu,
Seoul 06222
South Korea

Block details

Registry
MA-S, MAC Address Block Small (OUI-36)
Prefix
70:B3:D5:89:B /36
Addresses in block
4,096
Decimal range
123,917,684,027,392 to 123,917,684,031,487
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:D5:89:B0:00 and 70:B3:D5:89:BF: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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