🇬🇧USA to United Kingdom Calling Guide

Call the United Kingdom
Country Code +44

Calling United Kingdom from United States normally means dialing 011 then +44 before the local number. StartACall places the call from your browser instead, with no app to install and no SIM card to swap.

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.

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 Dial
Calling United KingdomLine Active
🇬🇧

How to Call the United Kingdom from the USA

Dialing the UK is simple if you know to drop the leading zero and use +44. Follow the steps below to connect to any UK landline or mobile.

1

US Exit Code

Dial 011. On mobile and web-based calling, you can use the plus sign + instead of 011.

2

UK Code (+44)

Dial +44 to reach the United Kingdom.

3

Drop the Leading Zero

Remove the initial 0 from area and mobile codes. For example, a London number shown as 020 7123 4567 becomes +44 20 7123 4567.

Dialing Examples

International calls to the UK require the country code, then the area or mobile code without its leading zero, followed by the local number.

Landline (London)
+44 20 7123 4567
Mobile
+44 7700 900123
(Drop the initial 0 from 07700...)

UK Area Codes

Common area codes for major cities in the United Kingdom. Remember to remove the leading zero when calling internationally.

CityRegionArea Code
LondonEngland20
ManchesterEngland161
BirminghamEngland121
GlasgowScotland141
LeedsEngland113
CityRegionArea Code
LiverpoolEngland151
BristolEngland117
EdinburghScotland131
BelfastNorthern Ireland28
NewcastleEngland191
Mobile Numbers

UK Mobile Rules

How UK mobile numbers work and how to dial them from the USA.

Mobile Numbers Start with 7

UK mobile numbers are normally shown nationally as 07xxxxxxxxx. When calling internationally, drop the leading zero and dial +44 7xxxxxxxxx.

+44 7700 900123

No Extra Prefixes Needed

You do not need additional carrier or access codes when calling the UK from the USA. Use +44 then the area or mobile number without the initial zero.

0044 020+44 20

Call the UK from Your Browser
No apps, no setup

StartACall bridges your browser to the global phone network. Make high-quality calls to UK landlines and mobiles directly from Chrome, Safari, or Firefox using WebRTC and Twilio.

  • Call any UK mobile or landline from your browser
  • Buy and manage UK virtual numbers
  • and real-time copilot for smarter calls
  • Real-time analytics and call monitoring

Global Reach

Reach UK numbers from anywhere in the USA with a browser-based connection.

Secure

End-to-end encryption and enterprise-grade security for business calls.

Instant

Start calling in seconds from any modern browser with no downloads.

Virtual Numbers

Purchase and manage UK virtual numbers for inbound handling and local presence.

Frequently Asked Questions

What is the country code for the UK?

The country calling code for the United Kingdom is +44. Use +44 then the area or mobile number without the initial 0.

Do I need to install an app to call the UK?

No. StartACall works entirely in the browser. Log in and start calling from Chrome, Safari, or Firefox without downloads.

How do I call a UK mobile number?

Dial +44 followed by the mobile number without the leading zero. For example +44 7700 900123.

How do I call a London landline from the USA?

Dial +44 20 followed by the 8-digit local number. For example +44 20 7123 4567.

Ready to call the United Kingdom?

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Calling United Kingdom from United States: what to know

United Kingdom answers on the country code +44, with the capital in London and most business concentrated around London, Manchester and Birmingham. The working language for business is English, and local offices generally keep hours of 9:00 to 17:30 typical. Pub-and-lunch culture clusters meetings 10:00 to 12:30 and 14:00 to 16:30.

From United States the outbound access code is 011, so a manual dial reads 011 then +44 then the local number. StartACall removes that step: the call goes through your browser, so there is nothing to install and no SIM card to swap when you travel between United States and United Kingdom.

Most mobiles in United Kingdom sit on operators such as EE (BT Group), O2 (Virgin Media O2), Vodafone UK. 070 numbers look like UK mobiles but are 'personal numbers' that can cost the caller £0.50/minute or more, they're not real mobile lines.

United Kingdom runs on UTC, and it shifts for daylight saving, so confirm the current difference before an early or late call.

How to dial United Kingdom from United States

  1. 1
    Dial the exit code 011

    011 is the international access code used when dialing out of United States. On a mobile you can press and hold 0 to enter the plus sign instead.

  2. 2
    Enter the country code +44

    +44 routes the call to United Kingdom.

  3. 3
    Add the local number

    Dial the destination number without its leading 0. For London that means including the area code 020.

Best time to call United Kingdom

The destination is 5 hours ahead of you.

United States clock (UTC minus 5)
09:00 to 12:00
United Kingdom clock (UTC)
14:00 to 17:00

Place the call inside this window and both you and the person in United Kingdom are within normal working hours.

Rates to United Kingdom (+44)

Pay as you go, billed per minute with no connection surprises. A sample 10 minute call is shown for each line type.

Line typePer minute10 minute call
Mobile$0.0955$0.96
Landline$0.0514$0.51

Rates as of 2026-06-06, in US dollars, and subject to change. The exact rate is always confirmed in the dialer before you connect.

Frequently asked questions

How do I call United Kingdom from United States?+

Dial 011 then +44 followed by the local number without its leading 0. From a browser on StartACall you simply enter the number and press call, with no exit code to remember.

What is the country code for United Kingdom?+

The country code for United Kingdom is +44. London uses the area code 020.

What is the best time to call United Kingdom?+

The destination is 5 hours ahead of you. Calling between 09:00 to 12:00 your time reaches United Kingdom during its working day (14:00 to 17:00 local time).

Do I need to install an app to call United Kingdom?+

No. StartACall runs in your browser on Chrome, Safari, Edge and Firefox, so you can place the call without downloading anything or buying a phone number for outbound calls.

Can I receive calls as well?+

Outbound calls need no number. To receive inbound calls you add a US or Canada digital number, billed monthly, and answer it in the same browser tab.

Last reviewed June 2026Reviewed by the StartACall calling teamDialing rules cross checked against ITU international dialing procedures
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