Business VoIP guide · 2025-05-06

Virtual Phone Numbers UK: What They Are and When Your Business Needs One

A virtual phone number isn't tied to a physical location. It rings wherever you set it. Here's how UK businesses use them — and when they make sense.

Quick answer: Virtual Phone Numbers UK: What They Are and When Your Business Needs One If you've ever searched "how do I get a London number without moving to London," you've already found a reason to use a...

Virtual Phone Numbers UK: What They Are and When Your Business Needs One

If you've ever searched "how do I get a London number without moving to London," you've already found a reason to use a virtual phone number. They're not complicated — but the word "virtual" puts people off. This post strips it back to what matters: what a virtual number actually is, and whether your business needs one.

In short:

  • A virtual phone number is a real, dialable UK phone number — it just isn't tied to a physical location or phone socket
  • It routes calls over the internet, not down a copper line
  • It rings wherever you tell it to: a desk phone, a laptop, a mobile, or all three at once
  • Any UK business can have one — in minutes, with no engineer visit required

What Makes a Phone Number "Virtual"

A traditional landline is a physical thing. Your 01202 number belongs to the Bournemouth exchange. It connects to a socket at your address. If you move, you lose it. If your office floods and everyone goes home, it stops ringing. The number and the location are the same thing.

A virtual phone number breaks that link.

The number exists in the cloud. When someone dials it, the call goes to a VoIP platform — not a specific street address — and that platform sends it wherever you've configured. Your office phones. Your team's laptops running a softphone app. Your mobile. A combination of all of them. The caller dials one number. You decide where it lands.

The number itself looks completely normal. A virtual 020 number looks identical to any other London landline. A virtual 0800 works just like any other freephone number. It just isn't nailed to a wall somewhere.


Why Businesses Get Virtual Phone Numbers

Establishing a local presence from anywhere in the UK

A business based in Manchester, Bristol, or Bournemouth picks up a 020 number because customers — rightly or wrongly — associate London numbers with scale and credibility. There's nothing misleading about it. You answer the call. You do the work. The 020 number simply doesn't announce that your office is somewhere else.

Targeting customers in specific cities

The same logic works in reverse. A Bournemouth-based business with clients in Birmingham might want a 0121 number so local customers feel they're dealing with someone nearby. A national trade company might have a number in each region it covers — all routing back to the same team.

Virtual numbers make this cheap and easy. You're not opening satellite offices. You're adding a number to your dashboard and pointing it at your existing team.

Keeping work and personal calls separate on one device

Remote workers and sole traders often don't want two physical phones. A virtual business number solves this cleanly. Your business calls come in on the VoIPninjas app. Your personal calls come in normally. Same device, clear separation — you can see which line is ringing before you answer.

Continuity when your team works across locations

If half your team is in the office and half is at home, a virtual number doesn't care. Configure it to ring all of them simultaneously, set up a call queue, or route by time of day. The number stays consistent for callers. How you handle it internally is entirely up to you.


Multiple Virtual Numbers — How It Works in Practice

You're not limited to one. A single VoIPninjas account can hold multiple virtual numbers, all routing to the same team.

Say you run a building firm based in Bournemouth. You could have:

  • 01202 — your local number for existing Bournemouth clients
  • 020 — for London-based developers and contractors
  • 0800 — freephone for new enquiry campaigns

All three ring the same office. Your team answers the same way. You might log which number got the most calls from a campaign. You might set different greetings per number. But operationally, it's one team handling everything.

Adding a new number takes minutes in the dashboard — no engineer visit, no waiting for a line to be activated, no hardware changes.


How VoIPninjas Provides Virtual Numbers

VoIPninjas is a direct UK VoIP provider based in Christchurch, Dorset. We're not a reseller routing calls through someone else's platform. Virtual numbers are a core part of every plan we offer.

Choose a new number — pick the area code you want (020, 0121, 01202, 0800) and it's live on your account. No waiting. No installation.

Port your existing landline — if you already have a business number your customers know, you can bring it with you. Once ported to VoIPninjas, your old landline number becomes a virtual number. It rings on VoIP, not down a copper line — but to the outside world, nothing changes.

This matters particularly given the PSTN switch-off. BT is retiring the analogue phone network in January 2027. Every phone number in the UK will effectively become IP-based after that date. Businesses still running traditional landlines will be forced to move. Businesses already on VoIP — already running virtual numbers — won't need to do a thing.

Plans run from £5.99 per user per month (Ronin) through to £24.99 (Shogun), all on 28-day rolling contracts. Most businesses are live within 10 working days. Free 14-day trial, no card required.


Ready to get a virtual number for your business? Whether you want a London 020, a local area code, or an 0800, we can have you live in days. Start your free 14-day trial → — or call us on 0330 043 2388 No tie-in, no setup fees. Most businesses are fully live within 10 working days.


Frequently Asked Questions

Can I get a London phone number if my business isn't in London?

Yes. A virtual 020 number has no location requirement. You can be based anywhere in the UK and have a London number active on your account today. Calls route over the internet to wherever your team is.

How long does it take to get a virtual phone number?

For a new number, it's fast — you can be live the same day in many cases. For porting an existing landline number across to VoIPninjas, the process typically takes around 10 working days. We handle the porting process and keep you updated.

Will my virtual number still work after the PSTN switch-off in 2027?

Yes. Virtual numbers on VoIP platforms like VoIPninjas are already operating on IP-based infrastructure. The PSTN switch-off will affect traditional landlines — your virtual number won't be disrupted because it was never dependent on the analogue network.

Can I have more than one virtual number on the same account?

Yes. You can have as many virtual numbers as you need, all managed from the same dashboard. Each number can have its own routing rules, greetings, and call handling — or they can all route to the same team.

Useful external sources

Need a better business phone setup?

Compare VoIPninjas plans or speak to a human before telecoms makes your eye twitch.