MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
BT
IEEE Registrant 2 Prefixes
BT9
BT9 manages 2 unique MAC address prefixes. These prefixes have a total block size of 16.8 million addresses.
The allocation includes the following types: MA-L(MAC Address Block Large, 16,777,216 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 22 July 2018, and the most recent update was made on 17 February 2021. These allocations support network identification and communication globally.
Unique prefixes 2
Block Size 16781310 (16.78 M)
First registration 22 July 2018
Last updated 17 February 2021
Entity Details
Unique prefixes 2
Block Size 16781310 (16.78 M)
First registration 22 July 2018
Last updated 17 February 2021
Types
MA-L: Block Type
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 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 |
|---|---|---|
| 70:B3:D5:6B:8 | MA-S | 2018-07-22 |
| C4:74:69 | MA-L | 2021-02-17 |