+1United States
The +1 prefix belongs to United States. If you got a call or text from a number starting with +1 (calling code 1), it came from United States. You can also call United States from your web browser with TwinPhone — no app and no SIM.
Call from your browser — from $0.02/min, no app, no SIM.
Code
+1
ISO
US
Region
Americas
Time zone
America/New York
Which country is +1?
The +1 code identifies United States on the international telephone network. Country code 1 is assigned to United States under the ITU-T E.164 numbering plan, so any phone number that begins with +1 — written +1 or 001 — is a United States number. You can call any United States number directly from your browser with TwinPhone — no app, no SIM — paying only for the minutes you talk.
Anatomy of a United States phone number
Every United States number in international format follows this shape — colour-coded so you can see where the country code ends and the local number begins.
When dialing United States from abroad, the only fixed part is +1 — that's the country code. The rest depends on whether you're calling a mobile or landline number inside United States.
Mobile example
+X XXX XXX XXXX
Example: +1 201 555 0123
Landline example
+1 XX XXXX XXX
Include the area code if applicable. Omit any leading 0.
How to call United States (+1) step by step
Enter the country code +1 when dialing United States from abroad.
Add the local phone number (in most countries, drop the leading zero).
Use TwinPhone to connect the call at low per-minute rates.
Start calling now
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Example numbers for United States:
United States at a glance
Country codes near +1
Dialing codes immediately above and below +1 in the ITU plan — handy if you mistyped a digit or are dialing across a region.
Frequently asked questions
Everything you need to know about TwinPhone.
The +1 code belongs to United States. Any phone number that starts with +1 — or with 001 — is a United States number. To reach one, TwinPhone connects United States numbers straight from your browser — no app or SIM needed.
The 001 prefix is United States. The 00 is the international exit code dialed from Europe and many other regions; it is followed by +1, the United States country code.
Dialing code 1 (dialed as +1 or 001) belongs to United States. Any phone number that starts with +1 is a United States number.
Country code 1 is the ITU-T E.164 calling code for United States. To call United States from abroad, dial +1 followed by the national number.
The country code (international dialing code) for United States is +1. To call United States from abroad, dial +1 followed by the national number (in most countries, without its leading zero).
+1 is United States's international country calling code under the ITU E.164 plan — often searched as the "1 area code". Any phone number starting with +1 is a United States number.
From TwinPhone, just type +1 and the number — we connect it. From a landline, dial your exit code, then +1, then the number (in most countries, without the leading 0).
United States's current local time is shown live on this page. Check it before calling so you reach people during waking hours.
Yes — we currently rent virtual numbers in the US and Canada, from $1.60/month. Use one as your caller ID so callers see a North American number, or receive incoming calls directly in your browser. Numbers for more countries are on the way.
Calling United States with TwinPhone starts from $0.02/min, billed by the minute (rounded up to the next full minute). It is pay-as-you-go from your browser — no connection fee and no monthly fee. The exact per-minute price for +1 landlines and mobiles is shown live on this page.
Yes. TwinPhone works entirely in your web browser — Chrome, Edge, Safari, or Brave on desktop or mobile. There is no app to install and no SIM card: open the site, add credit, dial +1 and the United States number, and the call connects.
A +1 number is not automatically a scam — +1 is simply the country code 1 assigned to United States under ITU-T E.164, so the call or text came from United States. If you do not know anyone there, treat an unexpected +1 call with the same caution as any unknown number: do not call back blindly and do not share personal details. Costs to call United States are shown above.
Cheap calls to United States
Per-minute rates to United States straight from your browser — no SIM, no app.
Free calls to United States
The honest free and cheap ways to call United States — apps, calling cards and pay-as-you-go compared.
Where is this number from?
Paste an international number (with +) and we'll tell you which country it's from, its dialing code, and how to call.
All phone dialing codes
The complete list of country codes and international dialing prefixes.
Need to call United States (+1)?
Dial +1 with TwinPhone — no SIM, no app, right from your browser.
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