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What is a static IP address, and which broadband providers offer a static IP?

Pressing a virtual screen - istock/NicoElNinoStatic IP addresses are a feature offered by broadband providers for business or home users with specific technical requirements.

But what is a static IP, do you need one, and which ISPs can provide you with a static IP for home or business broadband?

What is an IP address?

Every device on a network has an Internet Protocol (IP) address which identifies the device and tells the network where to send data. 

An IP address is a set of numbers separated by periods. For example: 172.217.169.78.

Type that IP address into a web browser and you’ll be taken to Google. Web addresses are used instead of IP numbers to make them easier to remember and type. When you enter a web site address it is translated into the server’s IP address by a Domain Name System (DNS) server.

  • IPv4 and IPv6

    The example IP address above is an IPv4 address, which is the most common type you’ll see right now. But there’s also IPv6, a newer standard which has a much larger range of addresses. 

    This is required because we’re running out of IPv4 addresses. There are a maximum of 4.3 billion IPv4 numbers, which sounds like a lot but isn’t much when it has to be shared with all net-connected devices around the world. That's one reason why static IP addresses aren’t typically given out as standard and often come at an additional cost.

When it comes to home broadband, your connection has a public IP address which is assigned by the ISP and is visible on the wider internet.

Devices on your home Wi-Fi network will have their own internal IP address (using the address range 192.168.0.0 - 192.168.255.255) but it is the public IP address which will be seen when communicating outside the local network.

What is a static IP address?

Most broadband connections have a dynamic IP address which is not permanently assigned and can change. But a static IP address is permanently attached to the broadband connection.

For most home users the difference between a dynamic and static IP address does not matter. It has no impact on web browsing, social media, streaming video or any of the other things a typical household will do with their broadband. 

But for some users - especially businesses - a static IP address may be preferable or essential.

Why would I need a static IP?

Any task which involves frequent connections to (and sometimes from) an IP address is made a lot simpler when that address is not at risk of changing without notice. Otherwise, you would be forced to note down or update the new IP each time it changed, and any automated tasks relying on a specific IP would fail until the new address was entered.

Static IP addresses are useful when you want to regularly access a device remotely, perhaps for remote desktop control, operating a web or file server, or connecting to a network hard drive. A static IP address can also be used for extra security by configuring a remote server to only accept communications from a specific IP address.

Businesses are the most common users of a static IP but there are plenty of people operating servers from home too, and it can also be helpful when remotely managing smart home devices.

Which ISPs can give me a static IP address?

Many providers can issue a static IP address but it may only be available to business customers. There is often a cost involved, too, either a one-off fee or an additional monthly charge.

ISPs which can provide a static IP include:

Andrews & Arnold: Free static IP as standard.

BT: Only available with BT Business broadband. £5.50 per IP address.

Plusnet: Available on most home and business packages. £5 setup fee for home packages.

TalkTalk: Only available with TalkTalk Business. From £1 per month.

Toople: This business broadband ISP offers a free static IP on request.

Virgin Media: Only available with Virgin Media Business on selected packages.

Zen: Available for free on request.

How do I get broadband with a static IP address?

Getting broadband with a static IP is much the same as any other broadband service: check availability in your area, select a deal, and sign up.

Here a couple of the best deals currently available from Plusnet, which can provide a static IP address on request for a one-off fee:

Dynamic deal panel

You may be asked during the sign-up process if you want a static IP, but some providers will assign a static address as standard.

If you have already signed up with a provider which offers a static IP but don't currently have one, just contact them and ask for it be set up.

How to get a static address without switching to a static IP broadband provider

If you need a static address but it isn’t offered by your ISP, or you’d rather not pay for it, there are a couple of options: Dynamic DNS (DDNS) or a VPN with static IP.

Dynamic DNS

DDNS is a way of getting a static address on a dynamic IP by associating your connection with a fixed URL. When the IP address changes a software application (or the Wi-Fi router) updates the URL with the new IP.

Unless your ISP already offers a free static IP we would recommend DDNS for most home users. It will let you easily access a home server or remote computer without switching providers, and it doesn't need to cost anything.

Some DDNS providers charge a fee (such as the popular DynDNS) but there are free options which are perfectly sufficient for typical home use. Free DDNS services include:

DuckDNS

No-IP

FreeDNS

To use DDNS you will either need to install a desktop software application or configure the DDNS service on your Wi-Fi router.

Desktop software is the easiest to set up but it will only work on that device. 

Setting it up with your router will ensure DDNS is always active, however, some models will only support a specific DDNS provider. In some cases, the router manufacturer may offer a free DNS service - for example, Netgear partners with No-IP to provide its users with a free “mynetgear.com” hostname which can be quickly configured via the router administration controls.

VPN with static IP address

While DDNS is useful, it's not quite the same as a static IP. It works for incoming connections which require a fixed address (so devices or applications trying to connect to your home computer or network) but it does not change how your IP address appears to the rest of the internet.

If you need a static IP address for connecting out to another device or service, then you can use a Virtual Private Network (VPN). You connect to the internet through the VPN, so your IP address will that of the VPN rather than your home broadband connection.

There are loads of VPN providers out there, many of which offer a dedicated IP as an additional extra. To find out more about a VPN and how to use it, read our guide to VPNs.

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