MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
CS
IEEE Registrant 2 Prefixes
C21 Systems Ltd
C21 Systems Ltd 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 29 April 2015, and the most recent update was made on 24 October 2018. These allocations support network identification and communication globally.
Unique prefixes 2
Block Size 8190 (8.19 k)
First registration 29 April 2015
Last updated 24 October 2018
Entity Details
Unique prefixes 2
Block Size 8190 (8.19 k)
First registration 29 April 2015
Last updated 24 October 2018
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 |
|---|---|---|
| 70:B3:D5:14:B | MA-S | 2018-10-24 |
| 70:B3:D5:7E:4 | MA-S | 2015-04-29 |