macadress

SAMSUNG ELECTRO MECHANICS CO., LTD.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:02:78:00:00:00 /24
Vendor address314, Mae-tan-dong, Suwon Suwon KR KOREA
Country🇰🇷  South Korea
RegisteredSep 8, 2000
Block range00:02:78:00:00:00– 00:02:78: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 →

Ownership timeline

  1. Sep 8, 2000 – May 25, 2016 Samsung Electro-Mechanics Co., Ltd. name changedaddress changed
  2. May 25, 2016 – present SAMSUNG ELECTRO MECHANICS CO., LTD.

Example addresses in this block

00:02:78:00:00:00 00:02:78:7F:FF:FF 00:02:78:FF:FF:FF

Where this block sits

Previous 00:02:77:00:00:00 /24 Cash Systemes Industrie Next 00:02:79:00:00:00 /24 Control Applications, Ltd.

The nearest registered blocks of the same size on either side of this one in IEEE's address space.

SAMSUNG ELECTRO MECHANICS CO., LTD. holds 18 registered blocks in the IEEE registry, ranking #189 of 33,427 organizations by block count.

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

00:21:19:00:00:00 /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