macadress

CADENCE DESIGN SYSTEMS, INC.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:30:C5:00:00:00 /24
Vendor address555 RIVER OAKS PARKWAY SAN JOSE CA US 95134
Country🇺🇸  United States
RegisteredSep 8, 2000
Block range00:30:C5:00:00:00– 00:30:C5: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 – Oct 9, 2015 CADENCE DESIGN SYSTEMS name changed
  2. Oct 9, 2015 – present CADENCE DESIGN SYSTEMS, INC.

Example addresses in this block

00:30:C5:00:00:00 00:30:C5:7F:FF:FF 00:30:C5:FF:FF:FF

Where this block sits

Previous 00:30:C4:00:00:00 /24 Canon Imaging Systems Inc. Next 00:30:C6:00:00:00 /24 CONTROL SOLUTIONS, INC.

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

CADENCE DESIGN SYSTEMS INC holds 2 registered blocks in the IEEE registry, ranking #1,675 of 33,427 organizations by block count.