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What is broadband and how does it work?
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You’ve heard of our superfast broadband, but have you ever wondered how it all works? Here’s everything you need to know about broadband, including what it is, how it works, and the different types you can get
By Virgin Media Edit
- Published
- 30 March 2026
The Low-down...
Broadband is a high-speed, always-on internet connection for streaming, gaming, and browsing.
There are different types of broadband, including fibre, ADSL, cable, mobile, and satellite.
Broadband speeds vary by type and the package you've got.
What is broadband?
Broadband is a high-speed, always-on internet connection that gives you access to the internet. It's called "broadband" because it can carry a lot of data at once, giving you all the speed and bandwidth you need for streaming videos, playing online games, or downloading files.
When broadband was first introduced, it literally meant the opposite of ‘narrowband’, the technology behind dial-up internet.
Today, it covers most types of internet connection you can get, from fixed-line home connections like copper ADSL or fibre-optic to 4G, 5G and even ultrafast gigabit broadband.
Whether you’re working from home, attending online classes, watching movies, or video chatting with friends and family, broadband makes it all possible without long waits or interruptions.
Key features of broadband
Broadband has a few key features that make it faster and more reliable than older internet connections:
High-speed: Delivers fast data transfer, measured in Mbps or Gbps
Always on: No need to reconnect like dial-up
Multiple types: Includes fibre, cable, ADSL, and wireless connections
How broadband works
Broadband works by sending data between your home and the internet through a fast, always-on connection. When you do something online (like load a webpage or stream a video), your request is broken into tiny data packets. These data packets travel over wires, cables, or wireless signals to reach the broader internet.
Once the data reaches your home, a small box called a modem translates it into a form your devices can understand. A router (often combined with the modem) then sends this data wirelessly (WiFi) or through cables to your phone, laptop, or tablet.
This whole process happens in reverse, too; when you send data (like uploading a photo), your device sends packets back through the router and modem to the internet. All of this happens in seconds, letting you stream, browse, upload and download smoothly.
Types of broadband
Broadband comes in different ways, each with its own technology, speed potential, and availability. Understanding the main options: fibre-optic, ADSL, cable, satellite, mobile, and wireless can help you choose the best connection for your home or business.
Fibre broadband is the most popular way of getting broadband, offering an extremely wide range of internet speeds depending on what’s available in your area. Fibre-optic broadband uses thin glass or plastic cables that transmit data as pulses of light, which means incredibly fast speeds and reliability.
There are two main types of fibre broadband: full-fibre (FTTP) and part-fibre (FTTC). Read our full comparison of FTTP and FTTC to understand the key differences in speed, reliability and availability.
ADSL broadband uses existing telephone lines to connect you to the internet. ADSL splits the phone line’s signal, letting you use the internet and make voice calls at the same time.
ADSL is now the oldest and slowest type of broadband, since it only runs on copper cables, and it’s slowly being phased out in the UK in favour of faster alternatives. This is part of the UK landline switch-off, which is replacing traditional phone lines with digital connections.
Cable broadband uses the same coaxial cables that deliver cable TV to your home.
Cable networks are shared among homes in your area. During busy times (like evenings), when many people stream or game, speeds can slow down because everyone is using the same “pipe.” Our newer cable systems (called DOCSIS 3.1/4.0) solve this problem by splitting the cable into more "lanes".
Our Speeds range from 50 Mbps to over 1 Gbps with our gigabit broadband, depending on your plan and network upgrades.
Use our helpful postcode checker to see what you can get
Satellite broadband works by sending and receiving data through a satellite in space. A dish installed at your home communicates with a satellite, which in turn connects to a ground station linked to the internet. This process enables satellite broadband to provide internet access in remote or rural areas where other types of broadband are unavailable.
Explore the best broadband options for rural areas to see what might work for your location.
Mobile broadband uses 4G or 5G networks to provide internet access. Data is transmitted through radio waves between your device and a nearby cell tower. You can connect to mobile broadband using a smartphone, a portable hotspot, or a USB dongle plugged into your computer, which makes it very convenient for people on the go.
Speeds depend on the strength of the signal and the type of network (4G or 5G), with 5G offering much faster speeds and lower latency.
Wireless broadband, also known as fixed wireless, uses radio signals from a nearby tower to provide internet access to your home.
Fixed wireless is a good option in areas where laying cables or installing fibre isn’t practical, such as rural or hard-to-reach locations.
Check out our wireless broadband deals to see if there’s a package that suits you.
For a more detailed breakdown of how each type works and what speeds you can expect, explore our guide to broadband types.
How fast is broadband?
Basic broadband usually offers speeds of around 20-50 Mbps. That's fast enough for everyday activities like browsing websites, checking emails, and watching videos online.
Fibre broadband is much faster, with speeds ranging from around 100 Mbps all the way to 1000 Mbps, making it good streaming, gaming, and working from home.
Some of the fastest broadband available in the UK, full fibre or gigabit broadband, can reach speeds of 1,000 Mbps (1 Gbps) or higher. These speeds are very fast and are ideal for large households or people who download big files, stream in 4K, or work from home with heavy internet use.
Not sure what speed you need?
The speed you need depends on how many people use the internet in your home and what you use it for. Homes with lots of streaming, gaming or working from home may need 100 Mbps or more.
Run a quick speed test to see how your connection performs.
Broadband vs WiFi: What’s the difference?
Broadband and WiFi are related but not the same thing. Broadband is the actual internet connection that comes into your home from your internet provider, while WiFi is the wireless signal that allows your devices to connect to the internet without cables.
Even if you have fast broadband, poor WiFi signals (due to distance from the router or interference) can make your internet feel slow on wireless devices.
What broadband can I get?
The broadband you can get depends on what’s available in your area. No matter where you are in the UK, you’ll most likely have access to superfast fibre broadband with speeds ranging from 30mbs all the way to 1gbs
We’ve got a range of superfast broadband deals beyond in various locations throughout the UK and Northern Ireland. You can bundle broadband with our TV and phone deals too for the ultimate entertainment experience!
Use our postcode checker to see what broadband you can get at your home.
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