A geographic phone number is a UK landline number whose area code links it to a place, such as 020 for London, 0161 for Manchester or 0118 for Reading. Ofcom allocates these numbers in the 01 and 02 ranges, and they sit alongside mobile numbers (07) and non-geographic numbers such as 0800 freephone and 03 numbers.
How UK phone numbers work
Ofcom manages the UK numbering plan. The main ranges a business meets are:
| Range | What it is | What callers usually pay |
|---|---|---|
| 01 and 02 | Geographic numbers, e.g. 020 London | Standard landline rate, normally in inclusive minutes |
| 07 | Mobile numbers (with some exceptions) | Mobile rate, normally in inclusive minutes |
| 0800 and 0808 | Freephone | Free from landlines and mobiles |
| 03 | Non-geographic, not tied to a place | Same as a geographic call |
| 084 and 087 | Non-geographic with a service charge | Access charge plus the business’s service charge |
Today a geographic number does not have to ring in that area. Most are delivered over the internet (VoIP), so a firm in Kent can hold an 020 number. Call tracking providers also issue local numbers in bulk so that each campaign or web visitor sees a different one.
Online, numbers should be written in a consistent way. In LocalBusiness schema and in tel: links, use the international E.164 format: drop the leading zero and add +44, so 020 7946 0123 becomes +442079460123. On the page itself, write it the way UK readers expect, such as 020 7946 0123. (That example comes from a block Ofcom reserves for TV and radio drama, so it belongs to nobody.)
Why it matters
Customers read area codes as a signal. A London number on a London plumber’s site feels local; an 0845 number feels like a call centre that will cost them money. For local search, the number is part of your NAP (name, address and phone number), and Google and directories compare it across the web. NAP consistency helps Google trust that the listings all describe the same business.
Common mistakes
- Using different numbers on the website, Google Business Profile and directories, so the business looks like several businesses.
- Putting a call tracking number into directory listings, then cancelling the tracking contract and leaving dead numbers everywhere.
- Using an 084 or 087 number for customer contact, which costs callers extra and puts people off.
- Writing the number as an image or in a format that phones cannot tap to call.
- Formatting the schema number without +44, or with the leading zero kept after +44.
How to act on it
Choose one main number and use it on your website, Google Business Profile and every local citation. A geographic number suits most local businesses; an 0800 or 03 number suits national firms. Then check each listing and correct any that differ.
If you use call tracking, keep tracking numbers to places you control. On the website, dynamic number insertion swaps the number for visitors from ads while search engines still see the main number in the HTML. On Google Business Profile, Google’s guidance at the time of writing (October 2026) allows a tracking number as the primary number with your main number added as an additional one. Keep directory listings on the main number.
If you move to a new provider, ask to port your existing number rather than taking a new one. Porting keeps the number that customers, directories and old printed material already use.
Sorting out numbers and NAP details across the web is a routine part of local SEO work for UK businesses.