Whether you’re looking to connect with a business contact or just trying to catch up with your old pal Elton, you might have to place a call to the UK from the US once in a while.
And while it’s not as straightforward as just keying in their number and hitting the green dial button, it’s not complicated either.
In this article, you’ll learn:
Contents hide
How to call the UK from the US in 4 easy steps
How to call mobile UK numbers from the USA
How to call UK landlines from the US
How to make business calls to the UK from the US
How to Factor in Time Zone Differences When Calling the UK
How much does it cost to call the UK from the US?
How to reduce calling costs to the UK
Call the UK for less with OpenPhone
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How to call the UK from the US in 4 easy steps

Before we dive right in, it’s important to note that there are different conventions you’ll need depending on whether you’re dialing a cellphone or a landline number.
We’ll explain how to place calls to both and get through every time.
How to call mobile UK numbers from the USA
If you’re calling a cellphone that has a UK number, all you need is a simple tweak to make sure your call gets through. Here’s how to do it in just four easy steps.
- Key in the exit code (011)
Use the exit code or substitute it with the (+) symbol if you’re on a cellphone or using OpenPhone.
- Dial the country code (44)
Right after the US exit code, the country calling code marks your call for routing to the United Kingdom.
(Video) How To open Phone Verified US American PayPal Easily in 2021 - Dial the mobile code (7)
When you’re calling a cellphone in the UK, the country’s mobile code (7) replaces the city code you’d have to use if you were calling a landline.
- Key in the mobile phone number
With the appropriate exit, country, and mobile codes keyed in, enter the cell number you’re trying to reach, which should typically be nine digits long.
Say you’re calling a cellphone in Bristol, when you’re done, you should have a string looking like this: 011-44-7-123-456-789 or +44-7-123-456-789

This can be broken down into:
- The international access code, or exit code: 011 (replace with + if you’re calling with a smartphone): 011
- the UK country code: 44
- The UK’s mobile code: 7
- Another pretend UK local number: 123-456-789
You’re all set.
How to call UK landlines from the US
Here’s a step-by-step breakdown of what it takes to reach landline numbers based in the United Kingdom.
- Key in the exit code (+ on a mobile phone or 011 on landline)
- Dial the UK country code (44)
- Dial the area code
- Enter your recipient’s cell number
1. Key in the exit code (+ or 011)
The exit code, also known as an international access code, signifies to your carrier that you’re making a call outside networks based within the United States so your call can be routed appropriately.
Alternatively, if you’re on a smartphone or using OpenPhone, you can simply key in the plus (+) symbol to replace the exit code, and your call will be routed just fine.
2. Dial the UK country code (44)
Similar to the exit code, keying in the UK’s country code signifies to your carrier that you’re calling a landline based in the United Kingdom. Again, this helps with routing your call across.
3. Dial the area code
Just like in the USA, cities in the UK are assigned unique area codes that can range from two to five digits in length.
For instance, the area code for Manchester is 0161. When dialing, however, you should omit the zero at the beginning and simply enter it as just 161.
Here are some of the most popular out of the UK’s 247 area codes.
UK City | Area Code |
---|---|
Belfast/Northern Ireland | 028 |
Birmingham | 0121 |
Brighton | 01273 |
Glasgow | 0141 |
Leeds | 0113 |
Liverpool | 0151 |
London | 020 |
Manchester | 0161 |
Sheffield | 0114 |
Southampton/Portsmouth | 023 |
4. Enter your recipient’s cell number
With your exit, country, and area codes keyed in, enter your call recipient’s local landline number and dial away.
For instance, if you’re calling a landline in Manchester, when you’re done, you should have a string of numbers looking like this: 011-44-161-1234-567 or +44-161-1234-567
This can be broken down into:
- The international access code, or exit code: 011 (replace with + if you’re calling with a smartphone): 011
- the UK country code: 44
- The area code for Manchester, omitting the zero prefix: 0161
- A pretend UK landline number: 1234-567
Dial away!
How to make business calls to the UK from the US
The easiest way to start dialing the UK is through OpenPhone. You can use our business phone system to call and text from your computer, smartphone, or tablet device.
Once you sign up for an OpenPhone account, you can start calling by following these simple steps from the web or desktop app:
- Ensure you have international calling enabled by accessing your specific phone number’s settings (international calling and messaging should be toggled on).
- If you haven’t already, add credits to your account for international calling in the Billing section of the app.
That’s it. Then you can follow the steps above to call someone in the UK from the US or any other location using your OpenPhone number.
How to Factor in Time Zone Differences When Calling the UK
Due to time zone differences and some states not observing daylight savings time, placing a phone call to the UK isn’t always as simple as keying a string of numbers and just dialing away.
Across the United States, there are six time zones where you might be calling from and you need to factor in your recipient’s local time to make sure you can set a time to connect:
- Eastern Time: the UK will be five hours ahead of you, so at noon it will be 5 PM in the UK
- Central Time: the UK will be six hours ahead of you, so at noon, it will be 6 PM in the UK
- Mountain Time: the UK will be seven hours ahead of you, so at noon, it will be 7 PM (If you’re in Arizona, the UK will be eight hours ahead of you during daylight savings time.)
- Pacific Time: the UK will be eight hours ahead of you, so at noon, it will be 8 PM in the UK
- Alaska Time: the UK will be nine hours ahead of you, so at noon, it will be 9 PM in the UK
- Hawaii Time: the UK will be 10 hours ahead of you, so at noon, it will be 10 PM in the UK (During daylight savings time, it will be 11 hours ahead.)
Because daylight savings time is observed at slightly different times in the US and the UK, and because some US states don’t observe it at all, a tool like Time and Date is very helpful. It can give you an accurate snapshot of what time it is across the US and the United Kingdom so you can determine the best window of time to connect with your contacts in the UK

How much does it cost to call the UK from the US?
Another issue you’ll have to get out of the way before placing a call to the United Kingdom is the subject of pricing.
American carriers can charge unpredictable rates, or worse, cut your call off in the middle of a conversation if you’re on a prepaid line. To solve that, you need an idea of how much your carrier charges and if calling the United Kingdom is included in your phone plan.
According to Federal Communications Commission data, phone services like AT&T can charge as much as $3.70 per minute, or over $220 per hour, for a call to the United Kingdom. If you need to call the United Kingdom frequently for personal or business reasons, you could rack up bills worth several hundreds of dollars every month.
How to reduce calling costs to the UK
An ideal solution will not just help you connect to recipients in the United Kingdom but will let you know costs upfront so you can make sure you’re getting the best deal possible.
And that’s where OpenPhone comes in: Instead of doing the guesswork to figure out whether you’ll be paying your carrier $2 or $200 for your call, OpenPhone lets you completeVoIP international callsto the United Kingdom reliably for as low as $0.03 per minute. Justenable international callingon your account and add credits.
For businesses that need a way to communicate with customers and contacts in the United Kingdom, OpenPhone offers:
- Avirtual phonewith unbeatable rates for calls and texts to the United Kingdom
- The ability to call and text from your computer, tablet, or smartphone — all you need is an internet connection
- Multiple numbers (includingshared phone numbers) so you can set up phone numbers for different teams and use cases (for example, if you have a colleague in the UK, they can have access to your team’s US number and be able to send and receive calls from anyone in the US or Canada for free)
- Flexible calling plans that scale with your business
- Call recordingto easily review your team’s communications with clients and contacts
- Integrations with the tools you already use includingSlack, Gmail,Zapier, andHubSpot
- Multi-device support so you can access your business phone on your smartphone, tablet, and computer
- Detailed insights and analytics into your calls and messages
Call the UK for less with OpenPhone
Whether you’re calling the United Kingdom, Canada, or anywhere else on the globe, OpenPhone offers a tailored phone system you can use for international calls and texts, without the headache of prepaid calling cards or exorbitant prices.
OpenPhone simplifies calls to the UK so you can connect with business contacts in just a few clicks, every time you need to.
Take OpenPhone for a spin with a free seven-day trial.
5/5 - (4 votes)
Daryna Kulya
Co-Founder at OpenPhone. Ukrainian-Canadian in SF. Love exploring new hiking trails.
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FAQs
How to Call the UK from the US: Step-by-Step Guide - OpenPhone? ›
First dial 011, the U.S. exit code. Next dial 44, the country code for the U.K. Then the area code (2-5 digits). And finally the phone number (4-8 digits; area code plus phone number equals 10 digits).
How do I make a phone call from USA to UK? ›First dial 011, the U.S. exit code. Next dial 44, the country code for the U.K. Then the area code (2-5 digits). And finally the phone number (4-8 digits; area code plus phone number equals 10 digits).
How do you call a +44 number from the US? ›- Step 1 – Dial Exit Code (011) The exit code is a signal for making calls outside the US. ...
- Step 2 – Key in the Country Code (44) Followed by dialing the UK country code (44)
- Step 3 – Dial the Area Code. ...
- Step 4 – Dial the UK landline number.
Start with 011 -- the exit code for the US and Canada. Next, enter 44 -- the country code for the UK. Then, dial 20 -- the London area code (landlines only*). Last, enter the local 8-digit London phone number.
Do I have to dial 011 from a cell phone? ›To place a call to a destination outside of the US that uses 10-digit dialing, simply dial the 10-digit phone number of the person you wish to call as you would when making a domestic call. To place a call to a destination outside of the US that can't be dialed direct using 10-digit dialing, you must start with 011.
Do you put 0 after +44 for a mobile? ›You leave out the 0 when you are phoning from abroad and include it when phoning from within the UK. <<Also, what is the + sign?>> It shows that the next two digits "44" are the code for the United Kingdom when phoning from another country. You replace them with the zero when phoning inside the UK.
Do you have to dial 011 for international calls? ›To call a phone in another country, dial 011, and then the code for the country you are calling, the area or city code, and the phone number. For example, if you are trying to call someone in Brazil (country code 55), in the city of Rio de Janeiro (city code 21), you would dial 011 - 55 - 21 - XXXX-XXXX.
Which country code is 011? ›011 – all countries and territories in the North American Numbering Plan: American Samoa. Anguilla. Antigua and Barbuda.
Is it 44 or 0044? ›So when you give someone in US your British number telling them it starts with 0044, it would not dial out from US to UK, because the exit code is 011 so the number should be 01144, hence the +44 form is the correct as it informs the caller to use the relevant international exit code according to their country 00, 011, ...
How do I make a phone call to London? ›London numbers are normally given as (020) xxxx xxxx. Within the (020) area, which includes all of London and a considerable distance beyond, you dial only the last eight digits. The number you have would be (020) 8xxx xxxx. So you dial 8xxx xxxx.
How do I call London from the US example? ›
A phone call from the United States to a London landline would look like: 011-44-20-XXXX-XXXX. XXXX-XXXX is the landline number, 20 the area code for Greater London, 44 the United Kingdom's country code, and 011 is the exit code for the United States. Know the local time in London before placing your call.
How do I call London from my mobile? ›When calling a UK phone number, the country code of +44 needs to entered, followed by the UK area code and a local (or mobile) number in order to complete the call. If calling from a landline, replace the + sign with 0011 followed by 44 (UK country code) and then the UK area code and local number.
Do I need to dial 011 to call UK? ›Dial the exit code 011. This will let your carrier know you're making an international call. Dial 44, the UK country code. This tells your carrier you're going to call the UK.
Is +1 the same as 011? ›You can use the “+” symbol in place of “011” if dialing from a cell phone. The “+” sign is usually the same key as “0” on a smartphone's keypad. Some countries share a country code. For example, Canada, the United States, some places in the Caribbean, and Guam share “1” as a country code.
How much does it cost to call a mobile from USA to UK? ›Calls to: | AT&T Basic Rate-Mobile | Verizon Basic Rate (Fios) - Mobile |
---|---|---|
China | $5.00 | $0.17 |
India | $5.00 | $0.29 |
Mexico | $3.65 | $0.05 |
UK | $3.70 | $0.29 |
When placing a call to an international country, you must use a country code. To make an International direct dial (IDD) call, dial: "011" + the country code + the city code + the phone number.
Can US call UK for free? ›With Rebtel, you can use any kind of phone to call any kind of phone, anywhere in the world, including for free to the UK.
What is the phone number for the UK? ›The country code for the UK is 44. It is also not necessary to dial the leading zero when calling into the UK from outside the country, so this is shown in a bracket. For example, +44 (0) 1423 396979 for Harrogate 01423 396979.