macadress

Opaque Systems

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1E:6C:00:00:00 /24
Vendor address4820 Fisher Road Athens OH US 45701
Country🇺🇸  United States
RegisteredOct 22, 2007
Block range00:1E:6C:00:00:00– 00:1E:6C: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. Oct 22, 2007 – Jun 23, 2009 Spliced Networks LLC name changed
  2. Jun 23, 2009 – Jul 4, 2014 Carbon Mountain LLC name changed
  3. Jul 4, 2014 – present Opaque Systems

Example addresses in this block

00:1E:6C:00:00:00 00:1E:6C:7F:FF:FF 00:1E:6C:FF:FF:FF

Where this block sits

Previous 00:1E:6B:00:00:00 /24 Cisco SPVTG Next 00:1E:6D:00:00:00 /24 IT R&D Center

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

Opaque Systems holds 1 registered blocks in the IEEE registry, ranking #22,083 of 33,427 organizations by block count.