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Arista Networks MAC address prefixes

MAC Address Vendor Lookup: Find who made a network card from its MAC address (IEEE registry), spot randomized and virtual machine addresses, and convert formats. Paste many.

The first half of a MAC address is assigned by the IEEE to the company that made the network adapter, so it tells you what a device on your network is: the Apple phone, the HP printer, the VMware VM. Paste one address in any notation, or whole arp -a, ipconfig /all, DHCP lease or switch MAC table output. Phones and newer Windows, macOS and Android versions often use random ("private") addresses, which no vendor owns; those are pointed out. Vendors come from the IEEE Registration Authority's public listings (59,125 assignments, downloaded 2026-10-27).

Try: VMware (00:50:56), Hyper-V (00:15:5D), Apple (3C:22:FB), Raspberry Pi (DC:A6:32), a 36-bit block (8C:1F:64:AF:A)

54 blocks registered to Arista Networks in the IEEE registry (downloaded 2026-10-27).

PrefixBlockRegistered nameCountry
00-1C-73 MA-L Arista Networks US
18-9C-E1 MA-L Arista Networks US
1C-8C-6E MA-L Arista Networks US
28-99-3A MA-L Arista Networks US
28-E7-1D MA-L Arista Networks US
2C-DD-E9 MA-L Arista Networks US
38-2C-DB MA-L Arista Networks US
38-38-A6 MA-L Arista Networks US
44-4C-A8 MA-L Arista Networks US
4C-09-97 MA-L Arista Networks US
50-45-D7 MA-L Arista Networks US
54-0F-2C MA-L Arista Networks US
58-D4-69 MA-L Arista Networks US
5C-16-C7 MA-L Arista Networks US
60-29-72 MA-L Arista Networks US
68-BF-6C MA-L Arista Networks US
6C-7A-63 MA-L Arista Networks US
6C-92-F6 MA-L Arista Networks US
74-83-EF MA-L Arista Networks US
78-5F-6C MA-L Arista Networks US
84-50-29 MA-L Arista Networks US
88-F7-15 MA-L Arista Networks US
8C-01-9D MA-L Arista Networks US
90-DB-77 MA-L Arista Networks US
94-3B-31 MA-L Arista Networks US
94-8E-D3 MA-L Arista Networks US
98-5D-82 MA-L Arista Networks US
9C-69-ED MA-L Arista Networks US
A4-7A-72 MA-L Arista Networks US
A8-8F-99 MA-L Arista Networks US
AC-3D-94 MA-L Arista Networks US
B4-3A-96 MA-L Arista Networks US
B8-58-FF MA-L Arista Networks US
B8-A1-B8 MA-L Arista Networks US
BC-14-09 MA-L Arista Networks US
C0-69-11 MA-L Arista Networks US
C0-D6-82 MA-L Arista Networks US
C4-CA-2B MA-L Arista Networks US
C8-08-8B MA-L Arista Networks US
C8-26-91 MA-L Arista Networks, Inc. US
CC-1A-A3 MA-L Arista Networks US
CC-E4-D1 MA-L Arista Networks US
D4-AF-F7 MA-L Arista Networks US
D8-06-F3 MA-L Arista Networks US
E0-1C-A7 MA-L Arista Networks US
E0-B6-13 MA-L Arista Networks US
E0-FA-5B MA-L Arista Networks US
E4-78-76 MA-L Arista Networks US
E4-8F-B7 MA-L Arista Networks US
E8-AE-C5 MA-L Arista Networks US
EC-8A-48 MA-L Arista Networks US
F0-C7-1F MA-L Arista Networks US
FC-59-C0 MA-L Arista Networks US
FC-BD-67 MA-L Arista Networks US