macadress

Brocade Communications Systems LLC

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:05:33:00:00:00 /24
Vendor address1320 Ridder Park Dr San Jose CA US 95131
Country🇺🇸  United States
RegisteredFeb 2, 2001
Block range00:05:33:00:00:00– 00:05:33: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. Feb 2, 2001 – Feb 9, 2008 Sanera Systems, Inc. name changedaddress changed
  2. Feb 9, 2008 – Feb 26, 2020 Brocade Communications Systems, Inc. name changedaddress changed
  3. Feb 26, 2020 – present Brocade Communications Systems LLC

Example addresses in this block

00:05:33:00:00:00 00:05:33:7F:FF:FF 00:05:33:FF:FF:FF

Where this block sits

Previous 00:05:32:00:00:00 /24 Cisco Systems, Inc Next 00:05:34:00:00:00 /24 Northstar Engineering Ltd.

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

Brocade Communications Systems LLC holds 25 registered blocks in the IEEE registry, ranking #136 of 33,421 organizations by block count.

Other blocks registered to Brocade Communications Systems LLC

00:00:88:00:00:00 /24 MA-L 00:01:0F:00:00:00 /24 MA-L 00:04:80:00:00:00 /24 MA-L 00:05:1E:00:00:00 /24 MA-L 00:0C:DB:00:00:00 /24 MA-L 00:12:F2:00:00:00 /24 MA-L 00:14:C9:00:00:00 /24 MA-L 00:1B:ED:00:00:00 /24 MA-L 00:24:38:00:00:00 /24 MA-L 00:27:F8:00:00:00 /24 MA-L 00:60:69:00:00:00 /24 MA-L 00:60:DF:00:00:00 /24 MA-L