MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
IC
IEEE Registrant 2 Prefixes
I/O Controls
I/O Controls manages 2 unique MAC address prefixes. These prefixes have a total block size of 8.2 thousand addresses.
The allocation includes the following types: 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 27 May 2022, and the most recent update was made on 09 July 2026. These allocations support network identification and communication globally.
Unique prefixes 2
Block Size 8190 (8.19 k)
First registration 27 May 2022
Last updated 09 July 2026
Entity Details
Unique prefixes 2
Block Size 8190 (8.19 k)
First registration 27 May 2022
Last updated 09 July 2026
Types
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
| MAC Prefix | Type | Registration Date |
|---|---|---|
| 8C:1F:64:D8:B | MA-S | 2026-07-09 |
| 8C:1F:64:FC:2 | MA-S | 2022-05-27 |