MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
C21 Systems Ltd
Unique prefixes: 2
Block Size: 8190 (8.19 k)
First registration: 29 April 2015
Last updated: 24 October 2018
Types
MA-S: Mac Address Block Small (previously named OUI-36, encompasses IAB Assignments). Number of address 2^12 (4096)
| 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 |