macadress

Polestar Corp.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:04:EF:00:00:00 /24
Vendor addressRM #802 SeoGeon B/D, 1480, Korea KR (ROK)
Country🇰🇷  South Korea
RegisteredJan 24, 2001
Block range00:04:EF:00:00:00– 00:04:EF: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. Jan 24, 2001 – Feb 2, 2001 Polestar Corp name changedaddress changed
  2. Feb 2, 2001 – present Polestar Corp.

Example addresses in this block

00:04:EF:00:00:00 00:04:EF:7F:FF:FF 00:04:EF:FF:FF:FF

Where this block sits

Previous 00:04:EE:00:00:00 /24 Lincoln Electric Company Next 00:04:F0:00:00:00 /24 International Computers, Ltd

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

Polestar Corp. holds 1 registered blocks in the IEEE registry, ranking #23,220 of 33,427 organizations by block count.