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USA Country Code (+1): How to call the USA
The USA country code is +1. To call America from another country, dial your international exit code, then 1, then the three-digit area code and the seven-digit local number. For example, a Washington, DC number may look like +1 202 555 1234.
Table of Contents
How do you call the USA?
To call the United States from abroad, use this format: +1 + area code + local number. Most American phone numbers use ten digits after the country code: a three-digit area code followed by a seven-digit local number.
| Country: | United States of America |
|---|---|
| Common names: | USA, United States, America |
| Country code: | +1 |
| International exit code: | 00 or +, depending on your country and device |
| Typical number format: | +1 202 555 1234 |
| Area code length: | 3 digits |
| Local number length: | 7 digits |
| Emergency number in the USA: | 911 |
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What is the USA country code?
The international country code for the United States is +1. You should use this code when you call an American landline, mobile number, hotel, airline, attraction, business or emergency contact from outside the United States.
However, +1 does not only cover the United States. The North American Numbering Plan also includes Canada and several Caribbean countries, so you still need the correct area code for the specific place you want to call.
How to call America from another country
Follow these steps when you call the USA from overseas.
- Enter the international exit code. On a mobile phone, use the plus symbol. On many landlines, use 00, although some countries use a different exit code.
- Dial the USA country code. Enter 1 after the exit code.
- Add the area code. Use the three-digit area code for the city, region or mobile number.
- Dial the local number. Enter the seven-digit local phone number.
- Check the full number. Finally, press call once the number follows the correct format.
Example: calling Washington, DC from abroad
If you call a Washington, DC number from another country, dial: +1 202 555 1234
In this example, +1 is the USA country code, 202 is the Washington, DC area code and 555 1234 is the local number.
American phone number format
Most USA phone numbers follow this structure: +1 NXX NXX XXXX
The first three digits after +1 form the area code. The next seven digits form the local number. Therefore, a standard American phone number contains ten digits after the country code.
When you save a US contact in your phone, save the number with +1 at the start. This format usually works best when you travel between countries because your phone can recognise the number as an international contact.
Major USA area codes
American area codes usually identify a city, region or overlay area. Large cities often use several area codes because demand for phone numbers keeps growing.
Use the table below as a quick guide to common US city area codes. However, always check the exact number before you call because many American cities have several overlapping area codes.
| City | State or district | Common area codes |
|---|---|---|
| Atlanta | Georgia | 404, 470, 678, 770 |
| Boston | Massachusetts | 617, 857 |
| Chicago | Illinois | 312, 773, 872 |
| Dallas | Texas | 214, 469, 945, 972 |
| Houston | Texas | 281, 346, 713, 832 |
| Los Angeles | California | 213, 310, 323, 424, 818 |
| Miami | Florida | 305, 645, 786 |
| New York City | New York | 212, 332, 347, 646, 718, 917, 929 |
| San Francisco | California | 415, 628 |
| Seattle | Washington | 206, 253, 360, 425, 564 |
| Washington, DC | District of Columbia | 202, 771 |
Calling mobile phones in America
US mobile numbers use the same general format as landlines. Unlike some countries, America does not use a separate national mobile prefix for all mobile phones.
As a result, you call an American mobile number in the same way as most other US numbers: +1 + three-digit area code + seven-digit local number. For example, a mobile number in New York may look like +1 646 555 0198.
Calling USA toll-free numbers from overseas
Many American businesses use toll-free numbers that begin with 800, 833, 844, 855, 866, 877 or 888. These numbers can help callers inside the USA contact businesses without standard long-distance charges.
However, toll-free numbers may not work from outside the United States. In addition, your mobile provider may still charge you if the call connects internationally. Therefore, look for a standard international number, use the company website, or contact the business through online chat when a toll-free number fails.
Check USA time zones before you call
The United States covers several time zones, so check the local time before you call. A convenient time in New York may be too early in California or too late in the UK.
The main US time zones include Eastern, Central, Mountain, Pacific, Alaska and Hawaii time. Additionally, some areas observe daylight saving time while others do not, so local times can vary during the year.
| Time zone | UTC offset | Example states or areas |
|---|---|---|
| Eastern Time | UTC-5 / UTC-4 | New York, Washington DC, Florida, Georgia, Massachusetts |
| Central Time | UTC-6 / UTC-5 | Illinois, Texas, Louisiana, Minnesota, parts of Tennessee |
| Mountain Time | UTC-7 / UTC-6 | Colorado, Utah, New Mexico, Montana, parts of Arizona |
| Pacific Time | UTC-8 / UTC-7 | California, Washington, Oregon, Nevada |
| Alaska Time | UTC-9 / UTC-8 | Most of Alaska |
| Hawaii-Aleutian Time | UTC-10 / UTC-9 | Hawaii and parts of the Aleutian Islands |
How to save money when calling America
International calls to the USA can become expensive, especially when you call from a mobile phone without an international plan. However, you can reduce costs with a few simple choices.
- Use Wi-Fi Calling when your mobile provider supports it.
- Use internet calling apps such as WhatsApp, FaceTime, Skype or Google Meet when both people have internet access.
- Buy an international calling bundle before you travel.
- Use an eSIM or local SIM if you need regular mobile data overseas.
- Check roaming charges before you make long calls.
- Use hotel phones carefully because hotels may add high call charges.
Can you call America using WhatsApp or internet calling?
Yes, you can call people in America using WhatsApp, FaceTime, Skype, Zoom, Google Meet and other internet calling services. These services use mobile data or Wi-Fi rather than the traditional international phone network.
Nevertheless, you should still save American phone contacts with the +1 country code. This helps apps recognise the correct international number and reduces problems when you travel.
FAQs: About calling America
No. US area codes form part of the standard ten-digit telephone number, so you do not add a leading zero when calling internationally. For example, a Washington, DC number would start +1 202 rather than +1 0202.
Save the number in international format using +1 followed by the three-digit area code and seven-digit local number, such as +1 202 555 1234. This format is particularly useful when travelling because your phone can normally use the same saved number from different countries.
It depends on the number and your telephone provider. US toll-free numbers commonly begin with prefixes such as 800, 833, 844, 855, 866, 877 or 888, but they may not accept calls from outside the North American Numbering Plan. Furthermore, a call that connects internationally may not be free.
The United States belongs to the North American Numbering Plan (NANP), which uses the +1 international calling code. Canada and several Caribbean countries and territories also participate in the plan. Therefore, +1 alone does not necessarily mean that a telephone number belongs to the United States.
You can make a WhatsApp call when the person you want to contact also uses WhatsApp. However, WhatsApp does not work like a standard international telephone call because it uses an internet connection rather than the conventional telephone network. Save the US contact with the +1 country code so WhatsApp can recognise the number correctly.
First, check that you have entered +1 followed by the complete ten-digit US number. You should also confirm that your mobile or landline provider allows international calls. In addition, some business, premium-rate and toll-free numbers may restrict calls originating outside the United States.
Usually, yes, provided your mobile plan supports international SMS. Enter the recipient’s number using +1 followed by the ten-digit US number. However, international messaging charges can apply, so internet-based messaging services may provide a cheaper alternative while travelling.
Not reliably. An area code can indicate where a telephone number was originally associated, but people can often keep their number after moving elsewhere. Consequently, you should not assume that a caller is currently located in the city or state associated with their area code.
Check the recipient’s complete telephone number, the local time at their destination and your provider’s international calling charges. The United States spans several time zones, so the appropriate calling time can differ considerably between destinations such as New York, Los Angeles, Alaska and Hawaii.
Summary
Calling the USA from abroad is straightforward once you know the correct international dialling format. Simply use the +1 country code, followed by the appropriate three-digit area code and the seven-digit local number. Before you call, remember to check the time difference, confirm the area code and review any international calling charges from your mobile provider.
If you plan to travel overseas regularly, read our guide to using your mobile phone abroad for practical tips on avoiding roaming charges and staying connected. You can also discover how eSIMs for international travel can provide a convenient and cost-effective alternative to traditional roaming, making it easier to call, message and access mobile data wherever you travel.

Author
Michael Harper
Michael Harper is the North America travel editor for anothertravel.com, specialising in travel guides, road trips, luxury escapes, and outdoor adventures across the USA, Canada, and Mexico. Drawing on years of first-hand travel experience throughout destinations including California, New York, British Columbia, and the Mexican Caribbean, he creates experience-led content that combines local insight with practical travel planning advice. His expertise includes city breaks, national parks, coastal travel, scenic driving routes, and family-friendly destinations, helping travellers discover both iconic attractions and lesser-known experiences across North America.
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