Calling the United States is simple with the right information. Discover in this article how to use US phone numbers, from country codes and area codes to toll-free numbers, and how to request a local number for your business!

What Is the US Phone Number Format?

To call the United States, use the US country code, which is 001. Alternatively, you can enter +1. This is the standard country code for the US that you need to connect to American phone numbers, both landline and mobile.

What Do US Mobile Numbers Look Like?

Unlike many other countries, such as the Netherlands, there is no clear distinction between landline and mobile phone numbers in the US. US mobile numbers begin with the same area code as landline numbers, depending on the region.

You won’t see a specific prefix like 06 for mobile numbers in the US. This system makes it easy for businesses to reach local customers with a single national phone number.

A US phone number consists of ten digits: a three-digit area code, followed by a three-digit central office code, and a four-digit subscriber number. The area code refers to a specific region or city. For example:

  • New York City (Manhattan): The area code is 212. A mobile or landline number in New York might look like this: (212) 555-1234.
  • Los Angeles: The area code is 213, so a number might look like this: (213) 555-9876.
  • Chicago: The area code is 312, for example: (312) 555-6543.

Useful US Phone Numbers

Most people know the emergency number 911, which is similar to 112 in Europe. In addition to this general emergency number, there are specific US phone numbers that can be useful:

  • Amtrak (National Railroad Passenger Corporation): (202) 906–3000
  • Poison Control Hotline: 1-800-222–1222
  • Missing Children Helpline: 1–800–843–5678 (1–800-THE-LOST)

Can I Register a US Number as a Non-Resident?

Yes, it’s possible! Belfabriek offers the option to register two types of US phone numbers. You can read more about this in this article.

US Phone Number on Mobile

With Belfabriek’s mobile apps, you can easily manage your US phone numbers from your smartphone or computer. This provides great flexibility for businesses that want to manage both landline and mobile phone numbers in the United States without hassle.

Register your US number today!