By understanding the UK’s telephone numbering scheme, you can work out how much a phone call should cost.

Phone CallIn the UK, it’s often possible to get an idea about the cost of a phone call based on its number. The most important thing to look at is the telephone number prefix: that’s the first couple of digits at the start of the phone number. The telephone number prefix dictates the cost of the call: it’ll tell you the “per minute” rate and whether the call is included on your mobile phone plan.

As a rule of thumb, inclusive minutes can only be used when calling UK landlines and UK mobile numbers (phone numbers beginning in 01, 02, 03 and 07). Phone numbers beginning with 084, 087 and 09 are special-rate numbers and will cost you more to call. Phone numbers beginning with 0800 and 0808 will always be free to call.

This article discusses telephone number prefixes. We’ll highlight the phone numbers included on a standard UK mobile plan and discuss the phone numbers which will result in extra charges. Finally, we’ll present some tips on how to get the best value for money when calling a number in each category.

The UK’s Telephone Numbering Scheme

Since the year 2000, the UK has used the following telephone numbering scheme. Take the first couple of digits and match it to a prefix to find out how your call will be treated.

Prefix Type of Telephone Number
01 UK Landline (Geographical Number). In the UK, landline telephone numbers all begin with 01 or 02. The area code at the start of the number corresponds with where the landline is based (e.g. 020 for London, 0121 for Birmingham or 0161 for Manchester). You can see a full list of area codes on the Ofcom website.
✔ Pay Standard Rates or Use Inclusive Minutes
From a mobile phone, you’ll always be charged the standard rate for calling a UK landline. On bundles and contracts, you’ll be able to use your inclusive minutes.
03 UK Landline Rate (Non-Geographical Number). If you’re calling a phone number that begins with 03, you’ll always pay the standard UK landline rates. You can also use any inclusive landline minutes. Phone numbers beginning with 03 are often used by government departments, non-profit organisations, banks and customer service lines.
✔ Pay Standard Rates or Use Inclusive Minutes
By law, telephone providers must charge the same for all calls made to 01, 02 and 03 numbers.
0500 UK “Freephone” (No Longer In Use). Historically, some “freephone” numbers used the 0500 prefix. As of June 2017, the 0500 numbers have been withdrawn and will no longer work.
07 UK Mobile Phones. In the UK, mobile phone numbers always begin with 07. For the most part, you’ll pay standard UK mobile rates when calling a phone number beginning with 07. Do, however, be wary of 070 and 076 phone numbers: they’re used for personal numbering and pagers. You’ll be charged a higher rate when calling these numbers.
✔ Pay Standard Rates or Use Inclusive Minutes
On most mobile phones, you’ll be charged the standard rates for calling a UK mobile. If you have inclusive minutes, you’ll be able to use them for the call. Please note: some UK networks charge more when calling a mobile rather than a landline.
Excludes 070 and 076 Phone Numbers
Phone numbers beginning with 070 and 076 are classed as personal numbers and pagers. You’ll pay up to £1.50/minute when calling them from your mobile. You shouldn’t return a missed call from these numbers.
0800 UK “Freephone”. From July 1st 2015, it’s free to call an 0800 or 0808 phone number from all UK phones (both landline and mobile). Prior to this, 0800 and 0808 phone numbers were only free when calling from a landline.
✔ Free from both landlines & mobiles
As of July 2015, it’s always free to call an 0800 and 0808 phone number.
084 UK Special Numbers. A phone number beginning with either 084 or 087 is a “special service” number. The cost of calling a special number is split into two parts: an access charge which goes to your phone provider and a service charge which goes to the company running the phone number. The access charge varies by network – see this page for more information. The Phone-Paid Services Authority is the UK’s regulator for special rate phone numbers.
Extra Charges Will Apply
You aren’t able to use your inclusive minutes. You’ll pay an access charge to your phone provider as well as a service charge to the company running the number.
09 UK Premium Rate Services. In the UK, premium rate phone services begin with 09. You might need to call a 09 number when voting in TV talent shows. The Phone-Paid Services Authority is the UK’s regulator for premium rate phone numbers. If you’d like to look up a phone number or to complain about charges on your bill, please refer to their website. As with 084 and 087 numbers, the charge is split up into an access charge and service charge.
Extra Charges Will Apply
You aren’t able to use your inclusive minutes. You’ll pay an access charge to your phone provider as well as a service charge to the company running the number.
X Factor Premium Rate
00 International (Outside the UK). If you dial a telephone number beginning with two zeros, you’ll be making an international call outside the UK. You’ll normally need to dial two zeros followed by a country code and then the local phone number. Refer to Wikipedia for a full list of international dialling codes. On most mobile phones, the + sign (obtained by long pressing the zero button) can substitute for 00. The UK’s international dialling code is 44 (so phone numbers beginning with 0044 or +44 are actually based in the UK)
Extra Charges Apply
0044 and +44 correspond to phone numbers in the UK. For instance, 020 7946 0123 can also be written as 0044 20 7946 0123 or +44 20 7946 0123. See this article for more information.

Saving Money On Your Phone Calls

Landline Numbers (01, 02 and 03 numbers)

Most home phone plans now include unlimited weekend calls to other UK landlines. Rather than using your mobile at the weekend, try to take full advantage of your inclusive landline calls. It’ll save you some precious mobile minutes: the minutes can be better used during the week or when calling other mobiles.

If you go over your monthly allowance of minutes included on your plan, you might need to pay up to 55p/minute to continue making calls. Rather than paying this, consider using a service such as Skype To Go. It costs 1.6p/minute to call a UK landline at any time.

Special Rate Phone Numbers (084, 087 & 09 numbers)

When calling an 084, 087 or 09 phone number, the charge is split up into an access charge and service charge. Unfortunately, the service charge is fixed by the company you’re calling. However, it’s possible to save money by choosing a phone company with a lower access charge. Presently, ASDA Mobile has the lowest per-minute access charge at just 8p/minute.

Premium-Rate Numbers (09 numbers)

Many competitions and TV reality shows require you to call a premium rate phone number. In some cases, it’s possible to enter the competition or to vote without calling the number. Check the small print for alternative ways to enter: sometimes you can go online or send a short e-mail.

International Numbers (00 numbers)

If you’re calling internationally, never pay the standard rates charged by your mobile network. It could cost you up to £1.50/minute: even a short phone call could leave you with a shockingly large bill. You can cut the costs of calling abroad by choosing a good network for international calling.

Another way to call abroad for less is to use a voice-over-IP solution such as Skype To Go. It’ll work on any network providing you have a fast enough connection. International phone calls can cost as little as just 1.4p/minute.

Many thanks to Ian Galpin for providing a number of corrections and modifications to this article.

Your Comments 28 so far

We'd love to hear your thoughts and any questions you may have. So far, we've received 28 comments from readers. You can add your own comment here.

  • Robert Johnston said:

    I’ve just made a 50 minute call to an 0800 number (vistaprint) -I am in Spain on holiday and needed to place an urgent order.
    I’m on a contract with O2 …… is the call free ?

      • Robert Johnston replied:

        Hi Ken,
        Thank you for your reply and advice – much appreciated.
        I was just asking so that I didn’t get a huge financial surprise in my next monthly bill from O2.

        Bob 👍🏼

        • The EU/EEA cap on roaming rates applies to calls made to ordinary landline and mobile numbers.

          As numbers starting 03, 08 or 09 are non-geographic I believe they are not covered. Check your phone bill and let us know the outcome.

          • Thanks Ian! According to the O2 website:
            ” It’s free to call freephone numbers starting 0800 or 0808 from your mobile phone or landline. These changes came into effect on 1 July 2015, as part of the UK Calling changes… Calls to 03 numbers will cost the same as other standard fixed line numbers starting 01 or 02, and are included as part of any inclusive or free minutes allowance on our tariffs.”
            Therefore, my interpretation of this along with the EU Roam Like Home rules is you should still be able to call 03 numbers using your inclusive allowance, and you should still be able to call 0800 numbers free of charge. However, @Robert, it would be great to get some feedback after your recent call from Spain.

          • The piece you quote from the O2 website was written in 2015, some two years before the roaming rules changed and so cannot (unfortunately) be relied upon to still be accurate.

  • PhonepayPlus (PPP) changed their name to the Phone-paid Services Authority (PSA). They regulate services using numbers starting 070, 087, 090, 091, 098 and 118 plus various mobile sbortcodes. They also regulate all chatlines, adult services and internet dialled-operated services irrespective of call or message cost or prefix used.

    • Another update for the article…

      PhonepayPlus (PPP) changed their name to the Phone-paid Services Authority (PSA). They regulate services using numbers starting 070, 087, 090, 091, 098 and 118 plus various mobile shortcodes. They also regulate all chatlines, adult services and internet dialler-operated services irrespective of call or message cost or prefix used.

      • The point of the above comment about PSA was to prompt you to change the mention of PhonepayPlus in the article, and the link, to instead mention Phone-paid Services Authority and update the link…

        • Hi Ian,
          So sorry – I’ve been terrible keeping up on all of my emails recently (it’s been a crazy few weeks). Thanks again for letting me know about the changes to the PSA. I’ve just updated the article reflecting your information: hopefully it now better reflects the reality of the situation?
          Thanks again,

  • Paul Ansell said:

    I live in the UK but I have some UK mobile numbers in my contacts with the 0044 international prefix already added. If I dial one of these numbers from the UK, will I be charged as if was an international call? I have always presumed not.

    • Hi Paul,
      Thanks for your comment. No problem at all having the contacts saved with a +44 prefix – you’ll still be charged the normal UK-to-UK rate.

  • I’m on Vodafone pay monthly and got charged for calling 07509… (Jersey). I had no idea it was a Jersey number, it just looks like a “normal” mobile as far as I can tell. I complained as I thought 07xxx were included in my bundle and they refunded the charge plus £3 “compensation”.

  • Hi, I had very good number which I lost following to suspension of my Vodafone pay as you go account. I didn’t use the sim for over a year. I wonder what does happen to the number after that? What do I need to do to get the number back?

    • Hi Mak,
      Thanks for your comment. For more information about this very issue, please see my in-depth article on Pay As You Go inactivity (there are multiple comments on that page from people in similar situations).
      To give you a short and concise answer, there’s unfortunately no way of getting the old number back. Vodafone is highly likely to have recycled the number already (or they would have returned the phone number back to its original network if it was previously ported in). You could try calling Vodafone Customer Services in case the number is still available but there’s no guarantee they’ll be able to return your number.
      Sorry to be the bearer of bad news.

  • Calls to 080 numbers become free from mobile phones on 26 June 2015. This change does not apply to 0500 numbers. Mobile operators can continue charging for calls to 0500 numbers.

    Ofcom is closing the 0500 range. Users have until June 2017 to move to the matching 0808 5 number (final six digits remain the same) or to make other arrangements.

  • Ken,

    You need to check costs when calling Isle of Man and the Channel Islands. These start 01 but are not included in free call time from mobiles and out of bundle charges will be applied. I got caught out by this and it led to a nasty bill.


    • Hi Richard,

      Thanks for the heads up: you make a really good point! For the reference of anyone reading this article, the following telephone prefixes correspond to numbers in the Channel Islands or Isle of Man:

      Jersey: 01534, 07509, 07700, 07797, 07829, 07937
      Guernsey: 01481, 07781, 07839, 07911
      Isle of Man: 01624, 07524, 07624, 07924

      If you call one of these prefixes, you might be charged extra.


      • Over time, some additional prefixes have been allocated to offshore mobile providers. The current situation is:

        Jersey: 01534 0-9; 07509 0-7; 07700 3,7,8; 07797 0-9; 07829 7-9; 07937 0-9.

        Guernsey: 01481 0-9; 07781 0-9; 07839 1,2,7,8; 07911 1,7.

        Isle of Man: 01624 0-9; 07418 4; 07452 0-6; 07457 6; 07624 0-9; 07924 0-4,6-9.

        In some cases only part of a prefix has been allocated to offshore providers, with the remainder of the block allocated to UK mainland providers.

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