VALCOM CO.,LTD. (40:B0:A1:00:00:00 /24)

VALCOM CO.,LTD. MA-L

MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.

Prefix40:B0:A1:00:00:00 /24

Vendor address7-25 MINOWA 3-CHOME TOYONAKA CITY,OSAKA JP 560-0035

Block range40:B0:A1:00:00:00– 40:B0:A1:FF:FF:FF

Address capacity16,777,216

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

40:B0:A1:00:00:00 40:B0:A1:7F:FF:FF 40:B0:A1:FF:FF:FF