SAMSUNG ELECTRO MECHANICS CO., LTD. (00:21:19:00:00:00 /24)

SAMSUNG ELECTRO MECHANICS CO., LTD. MA-L

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

Prefix00:21:19:00:00:00 /24

Vendor address314, Metan 3 dong Suwon Kyung-gi do KR 443-743

Block range00:21:19:00:00:00– 00:21:19: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

00:21:19:00:00:00 00:21:19:7F:FF:FF 00:21:19:FF:FF:FF

Other blocks registered to SAMSUNG ELECTRO MECHANICS CO., LTD.

00:02:78:00:00:00 /24 MA-L 00:26:37:00:00:00 /24 MA-L 20:64:32:00:00:00 /24 MA-L 38:AA:3C:00:00:00 /24 MA-L 50:CC:F8:00:00:00 /24 MA-L 5C:0A:5B:00:00:00 /24 MA-L 5C:A3:9D:00:00:00 /24 MA-L 78:D6:F0:00:00:00 /24 MA-L 84:0B:2D:00:00:00 /24 MA-L 90:18:7C:00:00:00 /24 MA-L 98:0C:82:00:00:00 /24 MA-L A0:0B:BA:00:00:00 /24 MA-L