ZS
IEEE Registrant 2 Prefixes

ZIEHL-ABEGG SE

ZIEHL-ABEGG SE manages 2 unique MAC address prefixes. These prefixes have a total block size of 1.1 million addresses.

The allocation includes the following types: MA-M(MAC Address Block Medium, 1,048,576 addresses each) and MA-S(MAC Address Block Small, previously named OUI-36, encompasses IAB assignments, 4,096 addresses each).

The company registered its MAC address allocation on 23 March 2021, and the most recent update was made on 06 October 2025. These allocations support network identification and communication globally.

Unique prefixes 2
Block Size 1052670 (1.05 M)
First registration 23 March 2021
Last updated 06 October 2025

Entity Details

Unique prefixes 2
Block Size 1052670 (1.05 M)
First registration 23 March 2021
Last updated 06 October 2025

Types

MA-M: Block Type

Mac Address Block Medium. Number of address 2^20 (~1 Million)

MA-S: Block Type

Mac Address Block Small (previously named OUI-36, encompasses IAB Assignments). Number of address 2^12 (4096)

Registered MAC Prefixes

All Organizationally Unique Identifiers and MAC ranges assigned to this vendor

2 Records
MAC PrefixTypeRegistration Date
70:B3:D5:69:8 MA-S2021-03-23
E8:F6:D7:3 MA-M2025-10-06