macadress

Cortina Systems Inc

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:13:25:00:00:00 /24
Vendor address840 W California Ave, Suite 100 Sunnyvale CA US 94086
Country🇺🇸  United States
RegisteredDec 20, 2004
Block range00:13:25:00:00:00– 00:13:25: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. Dec 20, 2004 – May 13, 2007 ImmenStar Inc. name changedaddress changed
  2. May 13, 2007 – Jun 16, 2007 Cortina Systems Corp. name changed
  3. Jun 16, 2007 – present Cortina Systems Inc

Example addresses in this block

00:13:25:00:00:00 00:13:25:7F:FF:FF 00:13:25:FF:FF:FF

Where this block sits

Previous 00:13:24:00:00:00 /24 Schneider Electric Ultra Terminal Next 00:13:26:00:00:00 /24 ECM Systems Ltd

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

Cortina Systems Inc holds 1 registered blocks in the IEEE registry, ranking #9,249 of 33,427 organizations by block count.