Find the vendor name of a device by entering an OUI or a MAC address
Arista Networks
Arista Networks accessible at www.arista.com, manages 30 unique MAC address prefixes. These prefixes are part of a massive allocation with a total block size of 503.3 million addresses.
The allocation includes the following types: MA-L (Mac Address Block Large, ~16 million addresses each).
The company registered its MAC address allocation on 13 May 2007, and the most recent update was made on 21 January 2025. These allocations support network identification and communication globally.
Unique prefixes: 30
Block Size: 503316450 (503.31 M)
First registration: 13 May 2007
Last updated: 21 January 2025
MA-L:Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
| MAC Prefix | Type | Registration Date |
|---|---|---|
| 00:1C:73 | MA-L | 2007-05-13 |
| 28:99:3A | MA-L | 2016-08-26 |
| 28:E7:1D | MA-L | 2022-06-10 |
| 2C:DD:E9 | MA-L | 2021-03-09 |
| 38:38:A6 | MA-L | 2022-09-07 |
| 44:4C:A8 | MA-L | 2015-11-17 |
| 54:0F:2C | MA-L | 2024-08-08 |
| 5C:16:C7 | MA-L | 2011-05-07 |
| 68:BF:6C | MA-L | 2024-05-09 |
| 74:83:EF | MA-L | 2017-07-23 |
| 78:5F:6C | MA-L | 2025-01-21 |
| 88:F7:15 | MA-L | 2025-01-21 |
| 94:8E:D3 | MA-L | 2020-10-16 |
| 98:5D:82 | MA-L | 2018-08-05 |
| 9C:69:ED | MA-L | 2024-06-25 |
| A8:8F:99 | MA-L | 2024-11-07 |
| AC:3D:94 | MA-L | 2023-01-13 |
| B8:A1:B8 | MA-L | 2024-09-20 |
| C0:69:11 | MA-L | 2022-04-06 |
| C0:D6:82 | MA-L | 2019-11-20 |
| C4:CA:2B | MA-L | 2021-07-23 |
| CC:1A:A3 | MA-L | 2023-04-26 |
| D4:AF:F7 | MA-L | 2020-06-11 |
| D8:06:F3 | MA-L | 2024-12-04 |
| E0:1C:A7 | MA-L | 2024-05-02 |
| E4:78:76 | MA-L | 2023-06-07 |
| E8:AE:C5 | MA-L | 2021-11-30 |
| EC:8A:48 | MA-L | 2022-11-08 |
| FC:59:C0 | MA-L | 2023-03-09 |
| FC:BD:67 | MA-L | 2019-03-18 |