70:B3:D5:05:30:00 to 70:B3:D5:05:3F:FF

YAMAKATSU ELECTRONICS INDUSTRY CO., LTD.

MA-SJapan4,096 addresses
Inspect this prefix

Registered address

1-37-23, Suenaga, Takatsu
Kawasaki-City Kanagawa 213-0013
Japan

Block details

Registry
MA-S, MAC Address Block Small (OUI-36)
Prefix
70:B3:D5:05:3 /36
Addresses in block
4,096
Decimal range
123,917,675,343,872 to 123,917,675,347,967
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:D5:05:30:00 and 70:B3:D5:05:3F: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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