TEIMA Audiotex S.L.

MA-L

MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.

Prefix00:0A:81:00:00:00 /24

Vendor addressC/ Tirvia, 6, local B Madrid ES 28040

RegisteredAug 3, 2002

Block range00:0A:81:00:00:00– 00:0A:81: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 →

Example addresses in this block

00:0A:81:00:00:00 00:0A:81:7F:FF:FF 00:0A:81:FF:FF:FF

Where this block sits

Previous 00:0A:80:00:00:00 /24 Telkonet Inc. Next 00:0A:82:00:00:00 /24 TATSUTA SYSTEM ELECTRONICS CO.,LTD.

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

TEIMA Audiotex S.L. holds 1 registered blocks in the IEEE registry, ranking #29,460 of 33,427 organizations by block count.