MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
S.E.I. CO.,LTD.
Unique prefixes: 3
Block Size: 12285 (12.28 k)
First registration: 18 April 2017
Last updated: 20 November 2021
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:D5:12:D | MA-S | 2019-10-04 |
| 70:B3:D5:56:B | MA-S | 2017-04-18 |
| 8C:1F:64:65:5 | MA-S | 2021-11-20 |