MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
IB
IEEE Registrant 7 Prefixes
IBM
IBM, accessible at www.ibm.com, manages 7 unique MAC address prefixes. These prefixes have a total block size of 70.3 million addresses.
The allocation includes the following types: MA-L(MAC Address Block Large, 16,777,216 addresses each) and MA-M(MAC Address Block Medium, 1,048,576 addresses each).
The company registered its MAC address allocation on 07 October 2011, and the most recent update was made on 25 July 2024. These allocations support network identification and communication globally.
Unique prefixes 7
Block Size 70254585 (70.25 M)
First registration 07 October 2011
Last updated 25 July 2024
Entity Details
Unique prefixes 7
Block Size 70254585 (70.25 M)
Website www.ibm.com
First registration 07 October 2011
Last updated 25 July 2024
Types
MA-L: Block Type
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)MA-M: Block Type
Mac Address Block Medium. Number of address 2^20 (~1 Million)Registered MAC Prefixes
All Organizationally Unique Identifiers and MAC ranges assigned to this vendor
| MAC Prefix | Type | Registration Date |
|---|---|---|
| 2C:69:1D:8 | MA-M | 2022-05-20 |
| 34:40:B5 | MA-L | 2011-10-07 |
| 40:F2:E9 | MA-L | 2012-10-05 |
| 90:4E:91:7 | MA-M | 2017-07-23 |
| 98:BE:94 | MA-L | 2014-02-25 |
| A8:97:DC | MA-L | 2013-05-02 |
| C4:FF:84:8 | MA-M | 2024-07-25 |