MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
NI
IEEE Registrant 2 Prefixes
NYBSYS Inc
NYBSYS Inc 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 04 August 2023, and the most recent update was made on 12 May 2025. These allocations support network identification and communication globally.
Unique prefixes 2
Block Size 1052670 (1.05 M)
First registration 04 August 2023
Last updated 12 May 2025
Entity Details
Unique prefixes 2
Block Size 1052670 (1.05 M)
First registration 04 August 2023
Last updated 12 May 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
| MAC Prefix | Type | Registration Date |
|---|---|---|
| 2C:7A:F4:E | MA-M | 2025-05-12 |
| 8C:1F:64:CF:6 | MA-S | 2023-08-04 |