macadress

ICANN, IANA Department

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:00:5E:00:00:00 /24
Vendor addressINTERNET ASS'NED NOS.AUTHORITY Los Angeles CA US 90094-2536
Country🇺🇸  United States
RegisteredApr 22, 1998
Block range00:00:5E:00:00:00– 00:00:5E: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. Apr 22, 1998 – Nov 5, 2013 USC INFORMATION SCIENCES INST name changedaddress changed
  2. Nov 5, 2013 – present ICANN, IANA Department

Example addresses in this block

00:00:5E:00:00:00 00:00:5E:7F:FF:FF 00:00:5E:FF:FF:FF

Where this block sits

Previous 00:00:5D:00:00:00 /24 CS TELECOM Next 00:00:5F:00:00:00 /24 Sumitomo Electric Industries, Ltd

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

ICANN, IANA Department holds 1 registered blocks in the IEEE registry, ranking #15,502 of 33,427 organizations by block count.