Call London
Area Code 020
Start the call from any browser tab. There is no download, and you only add a number to receive inbound calls.
Product facts
- Outbound: No dedicated number required.
- Inbound: Requires US/Canada digital number ($2.14 to $5/month).
- No apps: Works in Chrome, Safari, Edge, Firefox.
How to Call London from Anywhere
Follow these simple steps to reach London numbers using international format. We also show common pitfalls to avoid when calling UK numbers.
Start with +44
Use the plus sign or your country exit code then dial 44. This connects you to the UK. On mobile devices simply use the + sign.
Use 20 for London
After +44, add the London area code 20 then the 8 digit local number. Example: +44 20 7123 4567.
Do not confuse with mobile codes
UK mobile numbers start with 07. When calling from abroad drop the zero and use +44 7. Landlines and mobiles use different formats.
Dialing Examples
Clear examples for international and local dialing to London numbers.
UK City Codes at a Glance
Common area and city codes for major United Kingdom cities including London area code 20.
| City | Region | Area Code |
|---|---|---|
| London | England | 20 |
| Birmingham | England | 121 |
| Manchester | England | 161 |
| Glasgow | Scotland | 141 |
| Edinburgh | Scotland | 131 |
| City | Region | Area Code |
|---|---|---|
| Bristol | England | 117 |
| Leeds | England | 113 |
| Liverpool | England | 151 |
| Cardiff | Wales | 29 |
| Belfast | Northern Ireland | 28 |
UK Mobile Basics
Understand the difference between landlines and mobiles and how to format numbers when calling internationally.
Mobile Prefixes
Most UK mobile numbers begin with 07. For international calls replace the leading zero with +44. Example local 07900 123456 becomes +44 7900 123456.
London Landline History
You may see older references to 0207 and 0208. These are legacy subcodes. Today all London landlines use 020 plus the 8 digit number. When in doubt use +44 20 followed by the local number.
Call London from Your Browser
StartACall connects your browser to the PSTN so you can call London landlines and mobiles without installing apps. Use virtual numbers, s, and real time analytics to manage calls at scale.
- Make calls directly from Chrome Safari or Firefox
- Buy and manage UK virtual numbers from within your browser
- Use for live call assistance and transcriptions
- Real time analytics and spend tracking
Transparent Billing
Track minutes and spending in real time with no surprises.
Global Reach
Call any UK city including London from your browser.
Secure
Encrypted voice calls and enterprise readiness.
Instant
Start calling in seconds. No complex setup.
Frequently Asked Questions
What does area code 020 cover?
Area code 020 covers Greater London. When calling from abroad use +44 20 followed by the eight digit local number.
Are 0207 and 0208 still valid?
0207 and 0208 are legacy prefixes that used to indicate parts of London. They are now unified under 020. Use +44 20 plus the local number.
How do I call a UK mobile from outside the UK?
Drop the leading zero and add +44. For example 07123 456789 becomes +44 7123 456789.
Can I get a UK virtual number with StartACall?
Yes. StartACall allows you to buy and manage virtual numbers from the UK and the US and Canada directly from your browser.
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