macadress

Samsung Electronics Co.,Ltd

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:21:4C:00:00:00 /24
Vendor address416, METAN-3DONG, SUWON KYUNGKI-DO KR 442-742
Country🇰🇷  South Korea
RegisteredJun 18, 2008
Block range00:21:4C:00:00:00– 00:21:4C: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. Jun 18, 2008 – May 25, 2016 SAMSUNG ELECTRONICS CO., LTD. name changedaddress changed
  2. May 25, 2016 – present Samsung Electronics Co.,Ltd

Example addresses in this block

00:21:4C:00:00:00 00:21:4C:7F:FF:FF 00:21:4C:FF:FF:FF

Where this block sits

Previous 00:21:4B:00:00:00 /24 Shenzhen HAMP Science & Technology Co.,Ltd Next 00:21:4D:00:00:00 /24 Guangzhou Skytone Transmission Technology Com. Ltd.

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

Samsung Electronics Co.,Ltd holds 909 registered blocks in the IEEE registry, ranking #4 of 33,421 organizations by block count.

Other blocks registered to Samsung Electronics Co.,Ltd

00:00:F0:00:00:00 /24 MA-L 00:07:AB:00:00:00 /24 MA-L 00:12:47:00:00:00 /24 MA-L 00:12:FB:00:00:00 /24 MA-L 00:13:77:00:00:00 /24 MA-L 00:15:99:00:00:00 /24 MA-L 00:15:B9:00:00:00 /24 MA-L 00:16:32:00:00:00 /24 MA-L 00:16:6B:00:00:00 /24 MA-L 00:16:6C:00:00:00 /24 MA-L 00:16:DB:00:00:00 /24 MA-L 00:17:C9:00:00:00 /24 MA-L