Find the vendor name of a device by entering an OUI or a MAC address
Elektrotechnik & Elektronik Oltmann GmbH
Elektrotechnik & Elektronik Oltmann GmbH , manages 3 unique MAC address prefixes. These prefixes have a total block size of 12.3 thousand addresses.
The allocation includes the following types: IAB(Individual Address Block) 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 21 February 2011, and the most recent update was made on 17 November 2025. These allocations support network identification and communication globally.
Unique prefixes: 3
Block Size: 12285 (12.28 k)
First registration: 21 February 2011
Last updated: 17 November 2025
IAB:Individual Address Blocks. Number of address 2^24 (~16 Million)
MA-S:Mac Address Block Small (previously named OUI-36, encompasses IAB Assignments). Number of address 2^12 (4096)
| MAC Prefix | Type | Registration Date |
|---|---|---|
| 00:50:C2:3A:7 | IAB | 2011-02-21 |
| 8C:1F:64:AD:0 | MA-S | 2023-03-29 |
| 8C:1F:64:FC:A | MA-S | 2025-11-17 |