MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:30:C4:00:00:00 /24
Vendor address1-24 Yoneyama, Chuo-ku Niigata-shi Niigata JP 950-0916
RegisteredSep 8, 2000
Block range00:30:C4:00:00:00– 00:30:C4: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 – Mar 1, 2005 Niigata Canotec Co., Inc. name changedaddress changed
  2. Mar 1, 2005 – Jul 19, 2008 Canon Imaging System Technologies, Inc. name changedaddress changed
  3. Jul 19, 2008 – present Canon Imaging Systems Inc.

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.

Canon Imaging Systems Inc. holds 1 registered blocks in the IEEE registry, ranking #7,769 of 33,421 organizations by block count.