In today’s interconnected world, staying in touch across borders is more important than ever. Whether it’s a business conference call or checking in with family abroad, international communication is now a daily necessity. This guide will walk you through how to call the UK from the US effortlessly. Thanks to advances in technology and mobile services, it’s easier and more affordable than ever to connect across continents.
Understanding International Dialing Basics
An international call is simply a phone call made between two countries. Each country has a unique dialing code to help direct calls to the correct location. Dialing internationally requires an understanding of these codes and the order in which they must be used. Common pitfalls include forgetting to add the exit code, dialing a trunk prefix (such as 0), or misidentifying landline vs. mobile numbers.
The Exact Steps to Call the UK from the US
Follow these steps to dial a UK number correctly from the US:
- Step 1: Dial the US exit code (011)
- Step 2: Dial the UK country code (44)
- Step 3: Omit the UK trunk code (leading 0)
- Step 4: Enter the local UK number
Example:
- Calling a London landline: 011 44 20 7946 0018
- Calling a UK mobile: 011 44 7700 900123
How to Call UK Mobile Numbers from the US
UK mobile numbers typically begin with a “7” after the country code. While the process of dialing is the same, mobile numbers may incur different charges than landlines.
Example format:
- 011 44 7XXX XXXXXX (replace the first “0” with nothing)
Be aware that mobile numbers often cost more to call from international carriers.
Cost of Calling the UK from the US
Calling the UK from the US using traditional carriers can be pricey, especially for long calls or mobile-to-mobile connections. Major carriers typically charge per-minute international rates.
Better alternatives include:
- VoIP (Voice over Internet Protocol) services
- Wi-Fi-based calling apps
- International calling plans from your carrier
Business calls may require more reliable services, while personal users can opt for free or low-cost apps.
Best Apps to Call from US to UK (Free or Low-Cost Options)
Here are some popular apps for calling the UK from the US:
- WhatsApp – Free voice/video calls over Wi-Fi
- Skype – Great for both personal and business use
- Google Voice – Offers low rates and good integration with other Google services
- Viber – Free calls between users, affordable international calls
- OpenPhone – Ideal for professionals needing consistent international calling
Compare these for call quality, pricing, and features to find what suits your needs.
Calling the UK Using a Virtual Number
A UK virtual number is a phone number that isn’t tied to a physical phone line but allows you to send and receive UK calls from anywhere in the world.
Benefits:
- Receive UK calls while still in the US
- Useful for businesses, remote workers, and expats
- Builds trust with UK clients or contacts
Platforms offering UK virtual numbers include:
- Cooee
- Google Voice
- Grasshopper
- OpenPhone
Tips for Successful International Calling
- Confirm time zones before placing a call
- Use apps that operate over Wi-Fi or data to avoid international fees
- Save contacts in international format using +44 instead of 0
- Double-check the number type (mobile vs landline)
Common Mistakes When Calling UK from the US
- Forgetting to add the US exit code (011)
- Dialing the UK trunk prefix “0” after the country code
- Not recognizing differences between UK mobile and landline numbers
- Not confirming time differences or available hours
Conclusion
Calling the UK from the US in 2025 is simple once you know the right steps. Whether you’re dialing manually, using a virtual number, or calling through a digital app, options are more accessible and affordable than ever. Evaluate your calling needs—business or personal—and choose the method that offers the best balance of cost, convenience, and reliability.
FAQs: Calling the UK from the US
- What is the code to call the UK from the US?
Dial 011 (US exit code) followed by 44 (UK country code), then the local number without the leading 0. - Do I need to dial the ‘0’ before UK mobile numbers?
No, omit the leading 0 when calling from the US. - What’s the cheapest way to call the UK from the US?
Using VoIP apps like WhatsApp, Google Voice, or Viber over Wi-Fi is the cheapest method. - Can I call the UK for free using Wi-Fi?
Yes, many apps offer free international calling via Wi-Fi. - Is calling the UK from a US landline expensive?
Yes, landline rates can be high; consider mobile apps or VoIP services instead. - How can I get a UK virtual number while in the US?
You can sign up with platforms like Cooee, OpenPhone, or Google Voice to get a UK virtual number instantly.