00:1B:C5:0B:A0:00 to 00:1B:C5:0B:AF:FF

NT MICROSYSTEMS

MA-SJapan4,096 addresses
Inspect this prefix

Registered address

Midori-ku
Yokohama Kanagawa 2260017
Japan

Block details

Registry
MA-S, MAC Address Block Small (OUI-36)
Prefix
00:1B:C5:0B:A /36
Addresses in block
4,096
Decimal range
119,269,990,400 to 119,269,994,495
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 00:1B:C5:0B:A0:00 and 00:1B:C5:0B:AF: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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