macadress

Parameter LLC

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:90:5B:00:00:00 /24
Vendor address208 COMMERCE DR., UNIT #3C FORT COLLINS CO US 80524
Country🇺🇸  United States
RegisteredSep 8, 2000
Block range00:90:5B:00:00:00– 00:90:5B: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 – Aug 14, 2026 RAYMOND AND LAE ENGINEERING name changed
  2. Aug 14, 2026 – present Parameter LLC

Example addresses in this block

00:90:5B:00:00:00 00:90:5B:7F:FF:FF 00:90:5B:FF:FF:FF

Where this block sits

Previous 00:90:5A:00:00:00 /24 DEARBORN GROUP, INC. Next 00:90:5C:00:00:00 /24 EDMI

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

Parameter LLC holds 1 registered blocks in the IEEE registry, ranking #22,629 of 33,427 organizations by block count.