macadress

Citel

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:10:01:00:00:00 /24
Vendor addressLoughborough Innovation Centre Loughborough GB LE11 3EH
Country🇬🇧  United Kingdom
RegisteredApr 22, 1998
Block range00:10:01:00:00:00– 00:10:01: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. Apr 22, 1998 – Jun 16, 2007 MCK COMMUNICATIONS name changedaddress changedcountry changed
  2. Jun 16, 2007 – Jun 23, 2009 Citel plc name changedaddress changed
  3. Jun 23, 2009 – present Citel

Example addresses in this block

00:10:01:00:00:00 00:10:01:7F:FF:FF 00:10:01:FF:FF:FF

Where this block sits

Previous 00:10:00:00:00:00 /24 CABLE TELEVISION LABORATORIES, INC. Next 00:10:02:00:00:00 /24 ACTIA

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

Citel holds 1 registered blocks in the IEEE registry, ranking #8,510 of 33,427 organizations by block count.