Connecting with loved ones or business contacts in the United States from the UK doesn’t have to be a puzzle. Whether you’re managing relationships, running a business, or simply catching up, knowing the correct steps and codes makes the process simple. At Remit Choice, we understand the importance of staying connected across borders. That’s why we have created this comprehensive guide to help you call the US from the UK—efficiently and affordably.
Let’s break down the process and explore all the smart options available in 2025.
Understanding International Dialing Basics
What is an International Dialing Code?
An international dialing code is a prefix used to dial a number outside of your country. It connects your call through international lines to the correct destination country.
For example, when calling from the UK to the US, the dialing process involves:
- The UK exit code
- The US country code
- The US area code
- The local phone number
Differences Between Local and International Calls
Local calls use shorter dialing formats and no country or exit codes. But international calls, like UK to US, require specific sequences. If you miss even one digit, the call won’t connect.
Required Codes to Call the US from the UK
UK Exit Code: What Is It?
The UK uses 00 as the international dialing prefix. This signals your network to make a call outside the country.
US Country Code: Explained
The United States’ country code is 1. It’s used after the UK exit code.
So far, your dialed number should look like: 00 1.
US Area Codes: Full List & How to Use
Each US city or region has its own three-digit area code. For example:
- New York City: 212, 646, 917
- Los Angeles: 213, 310, 323
- Chicago: 312, 773
After the country code, you’ll add the area code of the person you’re calling.
Step-by-Step Instructions to Call the US from the UK
Format to Dial a US Landline Number
Here’s how it looks in real life:
00 + 1 + [Area Code] + [Local Number]
Example: 00 1 213 555 1234 (Calling Los Angeles)
Format to Dial a US Mobile Number
US mobile numbers follow the same structure. There’s no distinction in dialing.
00 + 1 + [Area Code] + [Mobile Number]
Example: 00 1 646 555 5678 (Calling New York Mobile)
Common Mistakes to Avoid
- Forgetting the UK exit code (00)
- Misdialing the area code
- Leaving out the US country code (1)
- Using a UK-style mobile prefix (like +44)—never mix formats!
Using Mobile vs Landline: Which is Better?
Cost Differences
- Landlines may be cheaper for long calls.
- Mobiles offer flexibility, but roaming fees can apply.
Call Quality & Reliability
- Landlines often have clearer connections.
- Mobile signals may vary based on coverage and Wi-Fi quality.
Hidden Fees
Watch out for:
- International surcharge
- Data roaming charges (if calling through mobile apps)
Cheap or Free Ways to Call the US from the UK
Internet-Based Services
These apps offer free or cheap calls using Wi-Fi:
Most allow voice/video calls internationally at no cost.
Calling Cards & VoIP Providers
- Local calling cards offer flat rates.
- VoIP services like Vonage or Google Voice provide online calling solutions.
Special Offers from UK Mobile Networks
Some UK providers offer add-ons or international plans, reducing costs. Always check your provider’s website for deals.
Calling the US from the UK Using Remit Choice App (Bonus Tip)
How Remit Choice Helps You Stay Connected
With Remit Choice, staying in touch goes beyond sending money. We make global communication seamless.
In-App Communication Features
Many of our users enjoy built-in notifications, status tracking, and easy access to recipient info. Future updates may include VoIP calling integration.
Integrated Remittance and Calling Benefits
- Send money and stay in touch from one place.
- Fast, secure, and cost-effective.
- Serving 70+ countries, including both the UK and US.
Time Zone Considerations Before Calling
Time Difference Between the UK and US
Time varies depending on the US state. Key time zones:
- Eastern Time (e.g., New York): 5 hours behind UK
- Central Time (e.g., Chicago): 6 hours behind
- Pacific Time (e.g., Los Angeles): 8 hours behind
Best Times to Make a Call
- Early afternoon in the UK = Morning in the US
- Avoid calling late UK evenings—might be sleeping hours in the US
Business vs Personal Calls to the US
How to Dial US Businesses
When calling a business in the US, use the same format:
00 + 1 + [Business Area Code] + [Business Phone Number]
Keep in mind:
- Businesses typically operate from 9 AM to 5 PM local time.
- Include time zone differences to avoid calling after hours.
Tips for Clear International Business Communication
- Speak slowly and clearly due to potential call delays.
- Use formal greetings and confirm names/spellings.
- For folLow-ups, email is often appreciated.
Calling US Toll-Free Numbers from the UK
Can You Reach 1-800 Numbers?
US toll-free numbers like 1-800, 1-888, 1-877, etc., often do not work internationally. These are free only within North America.
Alternatives to Toll-Free Numbers
- Use the business’s international number if listed.
- Visit their website for a local office contact.
- Email customer service for callback options.
Roaming Charges and International Plans
How to Avoid Unexpected Fees
Calling from your UK mobile may incur roaming or international charges. To avoid surprises:
- Check your network’s international rates.
- Use Wi-Fi calling where possible.
- Enable call cost alerts if your carrier offers them.
Best Mobile Plans for International Calling
Popular UK carriers offer add-ons for international calls:
- EE: International Pass
- Vodafone: Global Roaming Plus
- Three: Go Roam
- O2: International Bolt-On
Compare these plans to choose what suits your calling needs best.
Emergency Numbers and Important US Contacts
What Numbers Should You Know?
If you’re calling someone in the US and there’s an emergency, keep these numbers handy:
| Service | US Number |
| Emergency Services | 911 |
| Directory Assistance | 411 |
| International Operator | 00 |
| UK Embassy in the US | +1 202 588 6500 |
How to Call Emergency Services in the US
Simply dial 911 if you’re physically in the US. If you’re in the UK, contact the US embassy or local authorities depending on the situation.
FAQs About Calling the United States from the UK
Can I call the US from a UK mobile?
Yes, just dial 00, then 1, followed by the area code and phone number.
What’s the cheapest way to call the US from the UK?
Using internet apps like WhatsApp, Skype, or Viber is often free. For regular calls, consider mobile add-ons or international calling plans.
Why won’t my call go through to the US?
Check that you’re using the correct dialing format: 00 + 1 + area code + number. Also, make sure the number is active and you have international calling enabled
Can I call US toll-free numbers from the UK?
Usually no. Toll-free numbers like 1-800 work only within North America. Use alternative numbers listed by the company.
Is there a difference in dialing a landline vs a mobile in the US?
No, the format remains the same. US landlines and mobiles follow the same 10-digit structure after the country code.
How can Remit Choice help with US-UK communication?
Remit Choice supports international relationships through reliable remittance and in-app features that make communication smoother. We’re more than just a money transfer service—we help connect lives.
Conclusion
Calling the United States from the UK is easier than ever—if you know the right steps. By following the dialing format, choosing cost-effective tools, and leveraging apps like Remit Choice, you can stay connected without breaking the bank.
Whether you’re sending money or making a heartfelt call, Remit Choice is here to make your cross-border connections seamless and secure. We’re proud to serve communities in over 70 countries, empowering families, professionals, and friends across the globe.
