MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:13:3D:00:00:00 /24
Vendor address9540 Vassar Avenue Chatsworth CA US 91311
Country🇺🇸 United States
RegisteredJan 15, 2005
Block range00:13:3D:00:00:00– 00:13:3D: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
- Jan 15, 2005 – Dec 30, 2009 Micro Memory LLC name changed
- Dec 30, 2009 – present Micro Memory Curtiss Wright Co
Example addresses in this block
Where this block sits
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Micro Memory Curtiss Wright Co holds 1 registered blocks in the IEEE registry, ranking #19,780 of 33,427 organizations by block count.