macadress

Aspect Software Inc.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:C0:53:00:00:00 /24
Vendor address6 Technology Park Drive Westford MA US 01886
Country🇺🇸  United States
RegisteredSep 8, 2000
Block range00:C0:53:00:00:00– 00:C0:53: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 – Jun 3, 2005 DAVOX CORPORATION name changedaddress changed
  2. Jun 3, 2005 – Sep 29, 2007 Concerto Software name changed
  3. Sep 29, 2007 – present Aspect Software Inc.

Example addresses in this block

00:C0:53:00:00:00 00:C0:53:7F:FF:FF 00:C0:53:FF:FF:FF

Where this block sits

Previous 00:C0:52:00:00:00 /24 BURR-BROWN Next 00:C0:54:00:00:00 /24 NETWORK PERIPHERALS, LTD.

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

Aspect Software Inc. holds 1 registered blocks in the IEEE registry, ranking #5,641 of 33,427 organizations by block count.