macadress

TECNA SpA

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:0E:51:00:00:00 /24
Vendor addressVia Meucci, 27 Sastel San Pietro Terme Bologna IT 40024
Country🇮🇹  Italy
RegisteredSep 8, 2003
Block range00:0E:51:00:00:00– 00:0E:51: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, 2003 – Dec 3, 2022 tecna elettronica srl name changed
  2. Dec 3, 2022 – present TECNA SpA

Example addresses in this block

00:0E:51:00:00:00 00:0E:51:7F:FF:FF 00:0E:51:FF:FF:FF

Where this block sits

Previous 00:0E:50:00:00:00 /24 Thomson Telecom Belgium Next 00:0E:52:00:00:00 /24 Optium Corporation

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

TECNA SpA holds 1 registered blocks in the IEEE registry, ranking #29,413 of 33,421 organizations by block count.