MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
CB
IEEE Registrant 2 Prefixes
CelAudio (Beijing) Technology Inc
CelAudio (Beijing) Technology Inc manages 2 unique MAC address prefixes. These prefixes have a total block size of 17.8 million addresses.
The allocation includes the following types: CID(Company Identifier, not for globally unique applications) and MA-M(MAC Address Block Medium, 1,048,576 addresses each).
The company registered its MAC address allocation on 03 January 2024, and the most recent update was made on 28 October 2026. These allocations support network identification and communication globally.
Unique prefixes 2
Block Size 17825790 (17.82 M)
First registration 03 January 2024
Last updated 28 October 2026
Entity Details
Unique prefixes 2
Block Size 17825790 (17.82 M)
First registration 03 January 2024
Last updated 28 October 2026
Types
CID: Block Type
Company Identifier. This prefix will not be used for globally unique applications. 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 |
|---|---|---|
| 78:E9:96:B | MA-M | 2024-01-03 |
| 9A:27:1B | CID | 2026-10-28 |