How to find out the Ubiquiti Unifi AP and switch serial number?

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If you are managing a network with Ubiquiti UniFi Access Points (APs), you may eventually need the serial number for warranty claims (RMA), inventory tracking, or technical support. Unlike many other networking brands, finding the specific “Serial Number” field in the UniFi Controller can be tricky.

In this guide, we will cover the most effective ways to locate your UniFi AP serial number, including the technical SSH method.

1. The Technical Method: Using SSH (Recommended)

As you noted, the UniFi Network Application (Controller) often hides the serial number. The most reliable way to extract this information directly from the hardware is via SSH (Secure Shell).

Step 1: Locate Your SSH Credentials

Before connecting, you need the device-specific credentials:

  1. Log in to your UniFi Network Application.
  2. Navigate to Settings > System.
  3. Scroll down to Device SSH Authentication.
  4. Here you will find the username and password required to access your devices.

Step 2: Run the Command

Connect to your Access Point using a terminal (macOS/Linux) or PuTTY (Windows) and run the following command:

Bash

grep serialno /proc/ubnthal/system.info

The Result: You will see a string of characters. You will notice that for almost all Ubiquiti devices, the Serial Number is identical to the device’s MAC Address.

2. Using the “info” Command via SSH

Another quick way to see the serial number along with the firmware version and adoption status is to use the standard UniFi status command. Once logged in via SSH, simply type:

See also  UniFi Access Ponit SSH password

Bash

info

The output will clearly list the MAC Address/Serial Number at the top.

3. Physical Identification

If you have physical access to the device, you don’t need to use the software at all.

  • On the Device: Every UniFi AP has a sticker on the back (usually near the mounting bracket or the Ethernet port).
  • Format: Look for a string labeled S/N or MAC. It is usually a 12-character alphanumeric code (e.g., 18E8XXXXXXXX).
  • QR Code: Modern UniFi APs feature a QR code on the back. Scanning this with the UniFi Mobile App will instantly provide the serial number and model details.

4. Check the Original Packaging

If the AP is mounted high on a ceiling and you cannot use SSH, check the original box. Ubiquiti places a white sticker on the side of every box containing the:

  1. Product Model
  2. MAC Address (Which serves as the Serial Number)
  3. Test Date

When we run the code, we see that the serial number of the devices is the MAC address.

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