North America · Country code
United States Country Code +1
+1 is the international calling code for the United States, shared with 24 other countries and territories. Most phone numbers there have 10 digits, written (201) 555-0123 inside the United States and +1 201 555 0123 from abroad. Below: how to dial it, its area codes, networks and time zones.
Phone numbers in the United States at a glance
- Country calling code
- +1
- International dialing prefix
- 011 (or +)
- Trunk prefix (calls inside the country)
- 1
- Number length
- 10 digits
- Example mobile, from abroad
- +1 201 555 0123
- Same number, inside the country
- (201) 555-0123
- Time zones
- Hawaii-Aleutian Time (America/Adak)
- Alaska Time (America/Anchorage)
- Mountain Time (America/Boise, America/Denver)
- Central Time (America/Chicago, America/North_Dakota/Center)
- Pacific Time (America/Los_Angeles)
- Eastern Time (America/New_York)
- Mountain Standard Time (America/Phoenix)
- Hawaii-Aleutian Standard Time (Pacific/Honolulu)
- Capital
- Washington D.C.
- Languages
- English
- Currency
- USD
- ISO country code
- US
How to call the United States
From another country
- Dial your country's exit code, or press + on a mobile.
- Dial the country code 1.
- Dial the number.
+1 201 555 0123
From inside the United States
Dial the number as it is written, starting with the long-distance prefix 1. The country code is not needed.
(201) 555-0123
To call out of the United States, start with 011 (or +).
Types of phone number in the United States
The numbering plan reserves ranges for landline or mobile, toll-free, premium rate and personal number numbers. Mobile numbers have 10 digits. What each line type means.
Area codes in the United States
All 359 area codes of the United States, with where each is and how to dial it.
| Dial inside | From abroad | Place |
|---|---|---|
| 1 201 | +1 201 | Jersey City, NJ |
| 1 202 | +1 202 | Washington D.C. |
| 1 203 | +1 203 | New Haven, CT |
| 1 205 | +1 205 | Birmingham, AL |
| 1 206 | +1 206 | Seattle, WA |
| 1 207 | +1 207 | Portland, ME |
| 1 208 | +1 208 | Boise, ID |
| 1 209 | +1 209 | Modesto, CA |
| 1 210 | +1 210 | San Antonio, TX |
| 1 212 | +1 212 | New York, NY |
| 1 213 | +1 213 | Los Angeles, CA |
| 1 214 | +1 214 | Dallas, TX |
| 1 215 | +1 215 | Philadelphia, PA |
| 1 216 | +1 216 | Cleveland, OH |
| 1 217 | +1 217 | Springfield, IL |
| 1 218 | +1 218 | Duluth, MN |
| 1 219 | +1 219 | Hammond, IN |
| 1 220 | +1 220 | Ohio |
| 1 223 | +1 223 | Pennsylvania |
| 1 224 | +1 224 | North Chicago, IL |
| 1 225 | +1 225 | Baton Rouge, LA |
| 1 227 | +1 227 | Maryland |
| 1 228 | +1 228 | Gulfport, MS |
| 1 229 | +1 229 | Albany, GA |
| 1 231 | +1 231 | Muskegon, MI |
| 1 234 | +1 234 | Akron, OH |
| 1 235 | +1 235 | Missouri |
| 1 239 | +1 239 | Naples, FL |
| 1 240 | +1 240 | Frederick, MD |
| 1 248 | +1 248 | Troy, MI |
Show the other 329 area codesHide the other 329 area codes
Look up a phone number from the United States
Enter any number with +1, or just its digits: it shows the line type, place, network, time zone and every format. Free and private.
Phone numbers in the United States: frequently asked questions
What is the country code for the United States?
The country calling code for the United States is +1. Put it in front of the number when you call the United States from another country. +1 is shared by 25 countries and territories, including Canada, so the digits after it tell them apart.
How do I call the United States from abroad?
Dial your country's international access code (or press + on a mobile phone), then 1, then the number. For example, (201) 555-0123 inside the United States is dialled as +1 201 555 0123 from abroad.
Do I dial 1 before a phone number in the United States?
Yes, for calls inside the +1 countries: dial 1, then the ten-digit number. From another country you dial the access code (or +), then 1 once, then the ten digits: +1 201 555 0123.
How many digits does a phone number in the United States have?
Most phone numbers in the United States have 10 digits after the country code.
What is the international dialing prefix in the United States?
To call another country from the United States, dial 011, then the country code you are calling, then the number. On a mobile phone you can press + instead of 011.
What are the area codes in the United States?
the United States has 359 area codes, each pointing at a city or region. Examples: 1 201 for Jersey City, NJ, 1 202 for Washington D.C., 1 203 for New Haven, CT and 1 205 for Birmingham, AL.
What time zone is the United States in?
The United States spans Hawaii-Aleutian Time, Alaska Time, Mountain Time, Central Time, Pacific Time, Eastern Time, Mountain Standard Time and Hawaii-Aleutian Standard Time. A phone number carries no time information, so check the time there before you call.
Can I look up a phone number from the United States?
Yes. Enter any number with +1, or choose United States as the country, in the free phone number lookup. It shows the line type (mobile, landline, VoIP, toll-free), the place and network it was issued to, its time zone and every format of the number.