Diatrend Corporation (1C:82:59:20:00:00 /28)

Diatrend Corporation MA-M

MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.

Prefix1C:82:59:20:00:00 /28

Vendor addressGrand Front Osaka Tower-B 28F, 3-1 ofuka-cho, kita-ku Osaka Osaka JP 530-0011

Block range1C:82:59:20:00:00– 1C:82:59:2F:FF:FF

Address capacity1,048,576

AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority

TransmissionUnicast: addressed to a single device

SourceIEEE Registration Authority

Address capacity is the size of this registered block, not a count of devices actually manufactured or online. Registration identifies the organization holding the block, not a specific device model or unit.

Curious how a prefix like this turns into a full address? See how MAC addresses are structured →

Example addresses in this block

1C:82:59:20:00:00 1C:82:59:27:FF:FF 1C:82:59:2F:FF:FF