What is an IP address and why does it matter?

An IP address (short for Internet Protocol address) is a unique string of numbers that identifies your device on the internet. It helps networks recognise where information should go, so websites, apps, and services can send data back to you correctly.  

Every device that connects to the internet: your phone, laptop, smart TV or games console has something called an IP address. They were created in the early days of the internet so computers could find and talk to each other. You don’t usually see it working, but it plays a big role in how you stream, browse, game and work online. 

For example, numbers like 192.168.0.1 or 192.168.1.1 are often used for home router settings, while your internet provider assigns a separate public IP address that connects your household to the wider internet.

When you visit a website, your device sends a request using its IP address. That request travels across multiple servers, with your IP acting like a return address, so the website knows where to send the information back, whether that’s a webpage, video, or email. 

This is how IP addresses work: 

• Your router assigns local IP addresses to devices in your home 

• Your internet provider assigns a public-facing IP, so your household can connect to the wider internet 

Your router also uses subnets, basically “networks within networks”, to safely assign multiple private IPs to devices while using a single public IP.

Most devices actually have two types of IP addresses: one for your home network and one for the Internet. Together, they help your devices communicate while keeping your network organised:

Private IP address

This is the address assigned by your router to devices like phones, laptops or smart TVs. It lets devices those devices communicate to each other within your home. For example, when streaming from a laptop to a TV or printing over WiFi. These IP addresses aren’t visible on the public internet, but keeping them secure still depends on using a strong password, router settings and firewalls. 

Public IP address

This is the address assigned by your internet provider. It’s what websites and online services see when you browse, stream or game online. It’s globally unique and allows your network to send and receive data from external servers. Most home connections use a dynamic public IP, which can change over time, while static public IPs remain the same, which is useful for hosting servers or remote access

Most home broadband connections use a dynamic IP address, which means it changes from time to time. This is the default setup for most households because it’s easier to manage, supports efficient network use, and can add a small extra layer of privacy since your address isn’t permanently fixed. 

A static IP address stays the same. t’s usually only needed for more specific situations, such as hosting a website or server, accessing your home or office network remotely, or running certain gaming, business or smart-tech setups that benefit from a consistent connection. 

See our guide on the difference between static and dynamic IP addresses. 

Yes. Websites and online services can see your IP address when you connect. That’s normal and essential for the internet to work, helping data find its way back to your device. 

However, an IP address on its own reveals limited information: 

• It usually shows only an approximate location, not your exact address 

• It doesn’t expose personal details like your name or contact info 

• Shared networks can mean multiple households appear in a similar area 

Cybercriminals could try to use your IP as a stepping stone for phishing or other attacks, but they typically need further information and tools to do anything harmful. 

Top privacy tips 

• Keep your devices updated so they have the latest security protections 

• Use strong, unique passwords to help prevent unauthorised access 

• Consider using a VPN for an extra layer of protection 

Protecting your home network is an important part of staying safe online. Read more about keeping your internet connection secure. 

You rarely need it, but it can be useful for troubleshooting broadband issues, setting up devices, or checking your network security. Here are the easiest ways to find it:

Pro tip: Your local IP often starts with 192.168.x.x — this is the address your router assigns for devices within your home network. 

Your IP address helps the internet identify your devices and keep data flowing. Understanding it can help with troubleshooting, boosting online security, and getting the most from your broadband. 

Virgin Media broadband packages include Essential Security as standard for built-in protection, or you can upgrade to Advanced Security for full peace of mind. Whether you’re streaming, gaming, or running a smart home, our high-speed broadband keeps everything connected and secure.