SMA Railway Technology GmbH

MA-L

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

Prefix00:25:20:00:00:00 /24

Vendor addressMiramstraße 87 Kassel Hesse DE 34123

RegisteredFeb 1, 2009

Block range00:25:20:00:00:00– 00:25:20: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

00:25:20:00:00:00 00:25:20:7F:FF:FF 00:25:20:FF:FF:FF

Where this block sits

Previous 00:25:1F:00:00:00 /24 ZYNUS VISION INC. Next 00:25:21:00:00:00 /24 Logitek Electronic Systems, Inc.

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

SMA Railway Technology GmbH holds 1 registered blocks in the IEEE registry, ranking #27,672 of 33,427 organizations by block count.