74:E1:4A:10:00:00 to 74:E1:4A:1F:FF:FF

Cerevo Inc.

MA-MJapan1,048,576 addresses
Inspect this prefix

Registered address

River-side-seven bldg. 3F, 2-7-9, Sotokanda
Tiyoda Tokyo 101-0021
Japan

Block details

Registry
MA-M, MAC Address Block Medium (OUI-28)
Prefix
74:E1:4A:1 /28
Addresses in block
1,048,576
Decimal range
128,510,959,026,176 to 128,510,960,074,751
Address type
Unicast, universally administered

What this block covers

A 28 bit block. Sixteen of these fit inside one 24 bit prefix, so the first three octets are shared with other registrants.

Any MAC address between 74:E1:4A:10:00:00 and 74:E1:4A:1F:FF:FF belongs to this assignment. The registrant chooses the remaining 20 bits, so the same prefix can appear on very different products from the same company.

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