PROGNOST Systems GmbH

MA-M

MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.

PrefixAC:EF:92:50:00:00 /28

Vendor addressDaimlerstrasse 10 Rheine NRW DE 48431

RegisteredOct 18, 2024

Block rangeAC:EF:92:50:00:00– AC:EF:92:5F:FF:FF

Address capacity1,048,576

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

AC:EF:92:50:00:00 AC:EF:92:57:FF:FF AC:EF:92:5F:FF:FF

Where this block sits

Previous AC:EF:92:40:00:00 /28 LIFT CONTROLS PRIVATE LIMITED Next AC:EF:92:60:00:00 /28 shenzhen Microlumin Electronic Technology Co., Ltd.

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

PROGNOST Systems GmbH holds 1 registered blocks in the IEEE registry, ranking #23,533 of 33,427 organizations by block count.