Arista Networks MAC Address Prefixes
Arista makes data-centre and campus switches running EOS. Arista MACs typically appear on leaf-spine fabrics and high-frequency trading networks.
- IEEE blocks
- 59
- Registry names
- Arista Networks · Arista Network, Inc. · Arista Networks, Inc.
- MA-L (24-bit OUI)
- 59
Got a specific address? Look it up in the MAC address lookup →
What to know about Arista Networks MACs
- Arista's MLAG and VARP features use a shared virtual router MAC that you configure yourself, so the gateway MAC hosts see may not be an Arista OUI at all.
- 'show version' on EOS prints the system MAC address.
All registered blocks
From the IEEE registry via the oui-data package (a mirror of the IEEE listings) (MA-L, MA-M, MA-S), built 2026-11-01.
MA-L (24-bit OUI): 59 blocks
- 00:1C:73
- 18:9C:E1
- 1C:8C:6E
- 28:99:3A
- 28:E7:1D
- 2C:DD:E9
- 30:86:2D
- 38:2C:DB
- 38:38:A6
- 44:4C:A8
- 4C:09:97
- 50:45:D7
- 54:0F:2C
- 58:D4:69
- 5C:16:C7
- 60:29:72
- 60:6B:5B
- 68:8B:F4
- 68:BF:6C
- 6C:7A:63
- 6C:92:F6
- 74:83:EF
- 78:5F:6C
- 84:50:29
- 88:F7:15
- 8C:01:9D
- 90:DB:77
- 94:3B:31
- 94:8E:D3
- 98:5D:82
- 9C:69:ED
- A4:3F:68
- A4:7A:72
- A8:8F:99
- AC:3D:94
- B4:3A:96
- B4:92:FE
- B8:58:FF
- B8:A1:B8
- BC:14:09
- C0:69:11
- C0:D6:82
- C4:CA:2B
- C8:08:8B
- C8:26:91
- CC:1A:A3
- CC:E4:D1
- D4:AF:F7
- D8:06:F3
- E0:1C:A7
- E0:B6:13
- E0:FA:5B
- E4:78:76
- E4:8F:B7
- E8:AE:C5
- EC:8A:48
- F0:C7:1F
- FC:59:C0
- FC:BD:67
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Related: MAC address lookup · MAC to IPv6 (EUI-64) · all vendors