macadress

Oracle Corporation

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:01:5D:00:00:00 /24
Vendor address500 Oracle Parkway Redwood Shores CA US 94065
Country🇺🇸  United States
RegisteredSep 8, 2000
Block range00:01:5D:00:00:00– 00:01:5D: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 – Feb 12, 2004 Pirus Networks name changedaddress changed
  2. Feb 12, 2004 – Jun 24, 2010 Sun Microsystems, Inc name changedaddress changed
  3. Jun 24, 2010 – present Oracle Corporation

Example addresses in this block

00:01:5D:00:00:00 00:01:5D:7F:FF:FF 00:01:5D:FF:FF:FF

Where this block sits

Previous 00:01:5C:00:00:00 /24 CADANT INC. Next 00:01:5E:00:00:00 /24 BEST TECHNOLOGY CO., LTD.

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

Oracle Corporation holds 16 registered blocks in the IEEE registry, ranking #208 of 33,421 organizations by block count.

Other blocks registered to Oracle Corporation

00:00:7D:00:00:00 /24 MA-L 00:03:BA:00:00:00 /24 MA-L 00:07:82:00:00:00 /24 MA-L 00:0F:4B:00:00:00 /24 MA-L 00:10:4F:00:00:00 /24 MA-L 00:10:E0:00:00:00 /24 MA-L 00:13:97:00:00:00 /24 MA-L 00:14:4F:00:00:00 /24 MA-L 00:20:F2:00:00:00 /24 MA-L 00:21:28:00:00:00 /24 MA-L 00:21:F6:00:00:00 /24 MA-L 00:A0:A4:00:00:00 /24 MA-L