Sumitomo Electric Industries, Ltd (00:25:DC:00:00:00 /24)

Sumitomo Electric Industries, Ltd MA-L

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

Prefix00:25:DC:00:00:00 /24

Vendor address1-1-3, Shimaya, Konohana-ku Osaka JP 554-0024

Block range00:25:DC:00:00:00– 00:25:DC: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

00:25:DC:00:00:00 00:25:DC:7F:FF:FF 00:25:DC:FF:FF:FF

Other blocks registered to Sumitomo Electric Industries, Ltd

00:00:5F:00:00:00 /24 MA-L 00:08:F6:00:00:00 /24 MA-L 00:0B:A2:00:00:00 /24 MA-L 00:1C:FC:00:00:00 /24 MA-L 08:4E:BF:00:00:00 /24 MA-L 44:38:8C:00:00:00 /24 MA-L A4:DE:26:00:00:00 /24 MA-L