Home DefinitionCommunication and Network Technologies Understanding What is an SSID Number – WiFi Basics

Understanding What is an SSID Number – WiFi Basics

by Marcin Wieclaw
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what is ssid number

A service set identifier (SSID) is a unique sequence of characters that serves as the name of a Wi-Fi network. It is used to distinguish one network from others in the same physical area. SSIDs are essential for connecting devices like laptops and smartphones to a wireless network.

SSIDs can be up to 32 characters in length and are broadcasted by wireless routers and access points to allow users to find and connect to a network. Changing the default SSID and securing it with a password are common practices to prevent confusion and unauthorized access.

The SSID is part of the IEEE 802.11 WLAN architecture standards and is attached to packet headers to ensure data is sent to and from the correct network.

  • A service set identifier (SSID) is the name of a Wi-Fi network.
  • It distinguishes one network from others in the same area.
  • SSIDs are essential for connecting devices to a wireless network.
  • Changing the default SSID and securing it with a password prevent unauthorized access.

Now, let’s explore how to find and change an SSID name or password in the next section.

How to Find and Change an SSID Name or Password

If you’re looking to connect to a Wi-Fi network or change your current network’s SSID, this section will guide you through the process. Whether you need to locate your SSID or update its name and password, the steps below will help you accomplish these tasks.

Finding the SSID

There are a couple of ways to find the SSID of a network:

  • Check the label on your router: Many routers have the SSID printed on a sticker located on the device itself. This label usually contains other essential information, such as the network’s password and default login details.
  • Access Wi-Fi settings on various devices: On Windows, macOS, iOS, and Android devices, you can find the SSID by navigating through the Wi-Fi settings. Look for the network name listed under available networks.

Changing the SSID Name or Password

Once you’ve located your SSID, you may want to change its name or password for various reasons, such as improving network security or personalizing it. Here’s how:

  1. Access the router’s web browser interface: Type the IP address of your router in any web browser. You can find the IP address in the router’s manual or through a quick online search.
  2. Log in with your username and password: Enter the router’s login credentials to gain access to the router’s settings. These details are usually provided with the router or can be personalized during the initial setup process.
  3. Navigate to the wireless settings: Look for the wireless settings section within the router’s web interface. This section may be labeled differently depending on the router’s manufacturer, but it is typically easily accessible under network or Wi-Fi settings.
  4. Change the SSID name and password: Within the wireless settings, you’ll find options to modify the SSID name and password. Select the fields and enter the new information, making sure to choose a recognizable and unique SSID name while avoiding personally identifiable information.
  5. Save the changes: Once you’ve made the desired modifications, save and apply the changes within the interface. This will update the SSID name and password for your Wi-Fi network.

Changing the SSID name and password is an essential step in maintaining network security and preventing potential unauthorized access. It ensures that your network remains protected against malicious activities.

Securing and Hiding an SSID

When it comes to wireless network security, securing your SSID (Service Set Identifier) and considering its visibility are essential steps. By implementing additional security measures, you can protect your network from unauthorized access and potential security breaches. Let’s explore the options for securing and hiding your SSID.

Securing Your SSID

Securing your SSID involves implementing various wireless security methods to fortify your network. Consider the following:

  • Enabling a firewall: A firewall acts as a barrier between your network and potential threats, filtering out unauthorized access attempts.
  • Setting up a guest network: By creating a separate guest network, you can restrict access to your main network and protect sensitive data.
  • Using a virtual private network (VPN): A VPN creates a secure connection between your device and the network, encrypting data transmission.
  • Keeping router firmware up to date: Regularly updating your router’s firmware ensures that you have the latest security patches and fixes for any vulnerabilities.
  • Changing router login credentials: Always change the default router login username and password to prevent unauthorized access to your network settings.

Hiding Your SSID

Hiding your SSID involves turning off the broadcast to make your network invisible to the public. While this may provide some level of security, it is important to note that it is not a foolproof measure. Tools are available that can track hidden networks, and the IP address associated with your network can still be visible. However, hiding your SSID can add an extra layer of protection and deter casual attempts to connect to your network.

To summarize, securing and hiding your SSID are important steps in ensuring the security of your wireless network. While securing your SSID with additional measures can help protect against unauthorized access and security breaches, hiding your SSID can add an extra layer of protection. However, it is crucial to remember that implementing other security measures alongside hiding your SSID is necessary for overall network protection.

Importance of SSID in Wi-Fi Networks

SSID, or Service Set Identifier, plays a crucial role in Wi-Fi networks as it enables network identification and distinguishes one network from others. When multiple networks share the same SSID and security settings, devices tend to prioritize the network with the strongest signal or the one that is seen first. This can result in confusion and connection issues, particularly in areas with several networks using the default SSID.

To avoid these problems and make it easier for users to identify and connect to their own network, it is recommended to change the SSID. Changing the SSID helps ensure network clarity and minimizes confusion. Additionally, coupling the SSID with WPA2 provides secure authentication and encryption for wireless communications.

By keeping the SSID unique and properly securing the network, users can enhance privacy and prevent unauthorized access. This prevents potential intrusions and maintains the integrity of the network. A unique SSID allows devices to correctly identify and connect to the intended network, avoiding any mix-ups or interference caused by networks with similar names.


What is an SSID number?

An SSID number is a unique sequence of characters that serves as the name of a Wi-Fi network. It is used to distinguish one network from others in the same physical area.

How can I find the SSID of a network?

You can find the SSID of a network by checking the label on the router or accessing the Wi-Fi settings on various devices such as Windows, macOS, iOS, and Android devices.

How do I change an SSID name or password?

You can change an SSID name or password by accessing the router’s web browser interface or using an internet service provider’s app. By entering the router’s IP address and logging in with the username and password, you can navigate to the wireless settings and make the necessary changes.

How do I secure an SSID?

To secure an SSID, you can implement additional wireless security methods such as enabling a firewall, setting up a guest network, using a virtual private network (VPN), keeping the router’s firmware up to date, and changing the router login credentials.

Can I hide an SSID for extra security?

Yes, you can hide an SSID by turning off the broadcast. However, it’s important to note that hiding an SSID is not a foolproof security measure as tools are available to track hidden networks and the IP address can still be visible.

Why is the SSID important in Wi-Fi networks?

The SSID plays a vital role in Wi-Fi networks by enabling network identification and distinguishing one network from others. It helps users identify and connect to their own network, and when combined with WPA2, it provides secure authentication and encryption for wireless communications.


  • Marcin Wieclaw

    Marcin Wieclaw, the founder and administrator of PC Site since 2019, is a dedicated technology writer and enthusiast. With a passion for the latest developments in the tech world, Marcin has crafted PC Site into a trusted resource for technology insights. His expertise and commitment to demystifying complex technology topics have made the website a favored destination for both tech aficionados and professionals seeking to stay informed.

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