macadress

Audiotonix Group Limited

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:04:C4:00:00:00 /24
Vendor addressUnit 10, Silverglade Business Park Chessington Surrey GB KT9 2QL
Country🇬🇧  United Kingdom
RegisteredJan 24, 2001
Block range00:04:C4:00:00:00– 00:04: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. Jan 24, 2001 – Oct 14, 2002 Allen & Health name changed
  2. Oct 14, 2002 – Feb 12, 2004 Allen & Health Limited name changed
  3. Feb 12, 2004 – Mar 27, 2019 Allen & Heath Limited name changedaddress changed
  4. Mar 27, 2019 – present Audiotonix Group Limited

Example addresses in this block

00:04:C4:00:00:00 00:04:C4:7F:FF:FF 00:04:C4:FF:FF:FF

Where this block sits

Previous 00:04:C3:00:00:00 /24 CASTOR Informatique Next 00:04:C5:00:00:00 /24 ASE Technologies, USA

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

Audiotonix Group Limited holds 1 registered blocks in the IEEE registry, ranking #5,878 of 33,421 organizations by block count.