UK area code
020 — London
020 is the UK geographic dialling code for London, and also covers Croydon, Bromley, Enfield, Ilford, Kingston upon Thames, Sutton, Harrow, Romford (outer), Wembley, Twickenham. It is a landline code: UK mobile numbers begin 07 and have no area code.
How to dial 020
- From the UK
- 020 123456
- From abroad
- +44 20 123456
- Within the area
- 123456 — the local part alone usually works
Places on 020
11 places share this code.
Postcode districts in the 020 area
Approximate. Postcode boundaries and telephone-area boundaries are drawn by different bodies and don't line up exactly — this is reliable at town level and wrong at the margins where a district crosses a boundary.
Calling London from a 020 number
People answer a local number far more often than an unknown one. Local presence gives a floor a number in the area it's ringing, so a call to London shows a 020 number rather than one from wherever the business happens to sit. It's an add-on from £49 a month; whether a given code is available depends on what carriers hold at the time, so it's worth asking rather than assuming.
020 questions
Where is the 020 area code?
020 is the UK geographic dialling code for London, covering Croydon, Bromley, Enfield, Ilford, Kingston upon Thames, Sutton, Harrow, Romford (outer), Wembley, Twickenham. It is a landline code — UK mobile numbers start 07 and have no area code.
How do I dial 020 from within the UK?
Dial the full number including the leading zero: 020 followed by the local number. From a landline inside the 020 area you can usually dial the local part on its own, though including the code always works.
How do I dial a 020 number from abroad?
Dial your exit code, then 44, then 20 without the leading zero, then the local number. So 020 123456 becomes +44 20 123456.