MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
Grossenbacher Systeme AG
Unique prefixes: 27
Block Size: 110565 (110.56 k)
First registration: 21 February 2011
Last updated: 29 May 2024
Types
IAB: Individual Address Blocks. Number of address 2^24 (~16 Million)
MA-S: Mac Address Block Small (previously named OUI-36, encompasses IAB Assignments). Number of address 2^12 (4096)
| MAC Prefix | Type | Registration Date |
|---|---|---|
| 00:50:C2:02:9 | IAB | 2011-02-21 |
| 00:50:C2:41:0 | IAB | 2011-02-21 |
| 00:50:C2:A6:2 | IAB | 2011-02-21 |
| 00:50:C2:F1:D | IAB | 2012-03-15 |
| 40:D8:55:0F:1 | IAB | 2013-05-16 |
| 70:B3:D5:0D:E | MA-S | 2017-07-23 |
| 70:B3:D5:0E:8 | MA-S | 2017-01-07 |
| 70:B3:D5:29:7 | MA-S | 2016-02-18 |
| 70:B3:D5:3E:B | MA-S | 2019-07-04 |
| 70:B3:D5:5E:2 | MA-S | 2016-11-26 |
| 70:B3:D5:5F:E | MA-S | 2020-05-27 |
| 70:B3:D5:6B:7 | MA-S | 2018-02-15 |
| 70:B3:D5:75:8 | MA-S | 2018-06-14 |
| 70:B3:D5:80:3 | MA-S | 2018-12-16 |
| 70:B3:D5:A9:2 | MA-S | 2015-04-29 |
| 70:B3:D5:B7:5 | MA-S | 2020-01-18 |
| 70:B3:D5:BB:5 | MA-S | 2019-03-01 |
| 70:B3:D5:C9:1 | MA-S | 2016-04-24 |
| 70:B3:D5:CE:8 | MA-S | 2020-12-11 |
| 8C:1F:64:11:7 | MA-S | 2022-08-18 |
| 8C:1F:64:20:D | MA-S | 2023-10-19 |
| 8C:1F:64:83:A | MA-S | 2021-05-26 |
| 8C:1F:64:8D:F | MA-S | 2023-01-18 |
| 8C:1F:64:9F:4 | MA-S | 2022-05-04 |
| 8C:1F:64:AF:9 | MA-S | 2024-05-29 |
| 8C:1F:64:B1:8 | MA-S | 2024-01-24 |
| 8C:1F:64:E4:1 | MA-S | 2021-10-08 |