AG
IEEE Registrant 2 Prefixes

Alban Giacomo S.p.a.

Alban Giacomo S.p.a. 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 11 May 2023, and the most recent update was made on 23 February 2026. These allocations support network identification and communication globally.

Unique prefixes 2
Block Size 1052670 (1.05 M)
First registration 11 May 2023
Last updated 23 February 2026

Entity Details

Unique prefixes 2
Block Size 1052670 (1.05 M)
First registration 11 May 2023
Last updated 23 February 2026

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
6C:47:80:E MA-M2026-02-23
8C:1F:64:79:7 MA-S2023-05-11