Extreme Networks, Inc. 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)
100 blocks registered to Extreme Networks, Inc. in the IEEE registry (downloaded 2026-10-27).
| Prefix | Block | Registered name | Country |
|---|---|---|---|
| 00-01-30 | MA-L | Extreme Networks, Inc. | US |
| 00-04-96 | MA-L | Extreme Networks, Inc. | US |
| 00-19-77 | MA-L | Extreme Networks, Inc. | US |
| 00-89-C9 | MA-L | Extreme Networks, Inc. | US |
| 00-B8-1D | MA-L | Extreme Networks, Inc. | US |
| 00-DC-B2 | MA-L | Extreme Networks, Inc. | US |
| 00-E0-2B | MA-L | Extreme Networks, Inc. | US |
| 00-E6-0E | MA-L | Extreme Networks, Inc. | US |
| 08-EA-44 | MA-L | Extreme Networks, Inc. | US |
| 0C-9B-78 | MA-L | Extreme Networks, Inc. | US |
| 0C-ED-71 | MA-L | Extreme Networks, Inc. | US |
| 14-BA-A2 | MA-L | Extreme Networks, Inc. | US |
| 18-49-F8 | MA-L | Extreme Networks, Inc. | US |
| 1C-2D-60 | MA-L | Extreme Networks, Inc. | US |
| 1C-98-4B | MA-L | Extreme Networks, Inc. | US |
| 20-6C-8A | MA-L | Extreme Networks, Inc. | US |
| 20-9E-F7 | MA-L | Extreme Networks, Inc. | US |
| 24-1F-BD | MA-L | Extreme Networks, Inc. | US |
| 24-81-85 | MA-L | Extreme Networks, Inc. | US |
| 30-F8-56 | MA-L | Extreme Networks, Inc. | US |
| 34-85-84 | MA-L | Extreme Networks, Inc. | US |
| 40-18-B1 | MA-L | Extreme Networks, Inc. | US |
| 40-3F-43 | MA-L | Extreme Networks, Inc. | US |
| 40-88-2F | MA-L | Extreme Networks, Inc. | US |
| 40-B2-15 | MA-L | Extreme Networks, Inc. | US |
| 40-E3-17 | MA-L | Extreme Networks, Inc. | US |
| 40-E7-67 | MA-L | Extreme Networks, Inc. | US |
| 44-2D-49 | MA-L | Extreme Networks, Inc. | US |
| 44-E4-E6 | MA-L | Extreme Networks, Inc. | US |
| 48-9B-D5 | MA-L | Extreme Networks, Inc. | US |
| 4C-0A-4E | MA-L | Extreme Networks, Inc. | US |
| 4C-23-1A | MA-L | Extreme Networks, Inc. | US |
| 50-0A-9C | MA-L | Extreme Networks, Inc. | US |
| 58-58-CD | MA-L | Extreme Networks, Inc. | US |
| 58-59-C2 | MA-L | Extreme Networks, Inc. | US |
| 5C-0E-8B | MA-L | Extreme Networks, Inc. | US |
| 60-1D-56 | MA-L | Extreme Networks, Inc. | US |
| 60-2D-74 | MA-L | Extreme Networks, Inc. | US |
| 64-CB-A0 | MA-L | Extreme Networks, Inc. | US |
| 6C-03-70 | MA-L | Extreme Networks, Inc. | US |
| 74-67-F7 | MA-L | Extreme Networks, Inc. | US |
| 78-7D-53 | MA-L | Extreme Networks, Inc. | US |
| 78-96-A3 | MA-L | Extreme Networks, Inc. | US |
| 7C-95-B1 | MA-L | Extreme Networks, Inc. | US |
| 7C-A4-F7 | MA-L | Extreme Networks, Inc. | US |
| 80-95-62 | MA-L | Extreme Networks, Inc. | US |
| 88-5B-DD | MA-L | Extreme Networks, Inc. | US |
| 88-7E-25 | MA-L | Extreme Networks, Inc. | US |
| 8C-49-7A | MA-L | Extreme Networks, Inc. | US |
| 90-B8-32 | MA-L | Extreme Networks, Inc. | US |
| 94-9B-2C | MA-L | Extreme Networks, Inc. | US |
| 9C-5D-12 | MA-L | Extreme Networks, Inc. | US |
| 9C-DC-99 | MA-L | Extreme Networks, Inc. | US |
| A4-73-AB | MA-L | Extreme Networks, Inc. | US |
| A4-97-91 | MA-L | Extreme Networks, Inc. | US |
| A4-C7-F6 | MA-L | Extreme Networks, Inc. | US |
| A4-EA-8E | MA-L | Extreme Networks, Inc. | US |
| A8-C6-47 | MA-L | Extreme Networks, Inc. | US |
| AC-4D-D9 | MA-L | Extreme Networks, Inc. | US |
| AC-7F-8D | MA-L | Extreme Networks, Inc. | US |
| AC-ED-32 | MA-L | Extreme Networks, Inc. | US |
| B0-27-CF | MA-L | Extreme Networks, Inc. | US |
| B4-2D-56 | MA-L | Extreme Networks, Inc. | US |
| B4-A3-BD | MA-L | Extreme Networks, Inc. | US |
| B4-C7-99 | MA-L | Extreme Networks, Inc. | US |
| B8-1E-0B | MA-L | Extreme Networks, Inc. | US |
| B8-50-01 | MA-L | Extreme Networks, Inc. | US |
| B8-7C-F2 | MA-L | Extreme Networks, Inc. | US |
| B8-DC-28 | MA-L | Extreme Networks, Inc. | US |
| BC-34-D6 | MA-L | Extreme Networks, Inc. | US |
| BC-F3-10 | MA-L | Extreme Networks, Inc. | US |
| C4-13-E2 | MA-L | Extreme Networks, Inc. | US |
| C8-51-FB | MA-L | Extreme Networks, Inc. | US |
| C8-66-5D | MA-L | Extreme Networks, Inc. | US |
| C8-67-5E | MA-L | Extreme Networks, Inc. | US |
| C8-BE-35 | MA-L | Extreme Networks, Inc. | US |
| D8-02-C0 | MA-L | Extreme Networks, Inc. | US |
| D8-54-A2 | MA-L | Extreme Networks, Inc. | US |
| D8-84-66 | MA-L | Extreme Networks, Inc. | US |
| D8-E0-16 | MA-L | Extreme Networks, Inc. | US |
| DC-23-3B | MA-L | Extreme Networks, Inc. | US |
| DC-39-FD | MA-L | Extreme Networks, Inc. | US |
| DC-B8-08 | MA-L | Extreme Networks, Inc. | US |
| DC-BB-3D | MA-L | Extreme Networks, Inc. | US |
| DC-DC-C3 | MA-L | Extreme Networks, Inc. | US |
| DC-E6-50 | MA-L | Extreme Networks, Inc. | US |
| E0-1C-41 | MA-L | Extreme Networks, Inc. | US |
| E0-A1-29 | MA-L | Extreme Networks, Inc. | US |
| E4-16-13 | MA-L | Extreme Networks, Inc. | US |
| E4-44-E5 | MA-L | Extreme Networks, Inc. | US |
| E4-DB-AE | MA-L | Extreme Networks, Inc. | US |
| E4-FD-8C | MA-L | Extreme Networks, Inc. | US |
| F0-2B-7C | MA-L | Extreme Networks, Inc. | US |
| F0-64-26 | MA-L | Extreme Networks, Inc. | US |
| F0-9C-E9 | MA-L | Extreme Networks, Inc. | US |
| F4-54-24 | MA-L | Extreme Networks, Inc. | US |
| F4-6E-95 | MA-L | Extreme Networks, Inc. | US |
| F4-CE-48 | MA-L | Extreme Networks, Inc. | US |
| F4-EA-B5 | MA-L | Extreme Networks, Inc. | US |
| FC-0A-81 | MA-L | Extreme Networks, Inc. | US |