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The USA country code is +1 — reaching every American number across 50 states, DC, and 5 US territories. Get a real US virtual number in any area code, then call, text, and verify from anywhere in the world.

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Charles Brown
+1 (917) 232-6677
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USA number format
+1Country Code
(212)Area Code
555-0142Phone Number
+1Country code
1947NANP founded
335+Area codes
27NANP nations
6Time zones
10dDigits per number
02 — THE BASICS

What is the +1 country code?

A look behind the most-dialed prefix on Earth — where it came from, why it works the way it does, and who exactly belongs to it.

A single global digit

+1 is the only one-digit country code in active use worldwide. The shortest possible prefix, used to dial any US phone number from anywhere on Earth.

27 nations share it

The USA, Canada and 25 Caribbean and Pacific territories form the North American Numbering Plan (NANP) — all reachable with +1, distinguished by their 3-digit area code.

Always 10 digits

Every US phone number is exactly 10 digits after the +1 — a 3-digit area code (NPA), 3-digit prefix (NXX) and 4-digit subscriber number. Total length: 11 digits.

DID YOU KNOW

Important since 2021: 10-digit dialing is now required for every local call in the US. The 988 Crisis Lifeline created conflicts with 82 area codes that have a 988 prefix.

03 — QUICK FACTS

A quick read on how it works.

An American phone number in international format is written as +1 NPA NXX-XXXX — for example, +1 212 555 0100 for a Manhattan number. NPA is the area code, NXX is the central-office code, and XXXX is the subscriber line.

This structure is defined by ITU-T E.164, the international public-telephone numbering standard. The USA was one of the first countries to adopt it, and the format hasn't changed since.

Want to call USA from abroad? Dial your country's exit code (00 in most countries, 0011 in Australia, 010 in Japan), then 1, then the US number. On any mobile, simply replace the exit code with a + sign.
04 — COVERAGE

Where a +1 number reaches.

From New York harbor to a beach in Honolulu, every American metro lives behind a +1. Pick the area code that matches who you're talking to.

UNITED STATES · SIX TIME ZONES
+1 spans the entire continent.
Seattle · 206SF · 415LA · 213Denver · 303Phoenix · 602Chicago · 312Dallas · 214Houston · 713Atlanta · 404Miami · 305NYC · 212DC · 202Boston · 617
Pacific (UTC−8)Mountain (UTC−7)Central (UTC−6)Eastern (UTC−5)Alaska (UTC−9)Hawaii (UTC−10)
City & regionCodeZone
New York City, NY+1-212ETLos Angeles, CA+1-213PTChicago, IL+1-312CTHouston, TX+1-713CTPhoenix, AZ+1-602MSTPhiladelphia, PA+1-215ETSan Antonio, TX+1-210CTSan Diego, CA+1-619PTDallas, TX+1-214CTSan Jose, CA+1-408PTAustin, TX+1-512CTJacksonville, FL+1-904ETFort Worth, TX+1-817CTColumbus, OH+1-614ETIndianapolis, IN+1-317ETCharlotte, NC+1-704ETSan Francisco, CA+1-415PTSeattle, WA+1-206PTDenver, CO+1-303MTWashington, DC+1-202ETNashville, TN+1-615CTOklahoma City, OK+1-405CTEl Paso, TX+1-915MTBoston, MA+1-617ETPortland, OR+1-503PTLas Vegas, NV+1-702PTDetroit, MI+1-313ETMemphis, TN+1-901CTLouisville, KY+1-502ETBaltimore, MD+1-410ETMilwaukee, WI+1-414CTAlbuquerque, NM+1-505MTTucson, AZ+1-520MSTFresno, CA+1-559PTSacramento, CA+1-916PTMesa, AZ+1-480MSTAtlanta, GA+1-404ETKansas City, MO+1-816CTColorado Springs, CO+1-719MTOmaha, NE+1-402CTRaleigh, NC+1-919ETMiami, FL+1-305ETLong Beach, CA+1-562PTVirginia Beach, VA+1-757ETOakland, CA+1-510PTMinneapolis, MN+1-612CTTulsa, OK+1-918CTArlington, TX+1-682CTNew Orleans, LA+1-504CTWichita, KS+1-316CTCleveland, OH+1-216ETTampa, FL+1-813ETBakersfield, CA+1-661PTAnaheim, CA+1-714PTHonolulu, HI+1-808HSTRiverside, CA+1-951PTLexington, KY+1-859ETStockton, CA+1-209PTSt. Louis, MO+1-314CTSaint Paul, MN+1-651CTPittsburgh, PA+1-412ETCincinnati, OH+1-513ETAnchorage, AK+1-907AKTGreensboro, NC+1-336ETPlano, TX+1-972CTNewark, NJ+1-973ETBuffalo, NY+1-716ETJersey City, NJ+1-201ETOrlando, FL+1-407ETSt. Petersburg, FL+1-727ETMadison, WI+1-608CTDurham, NC+1-984ETLubbock, TX+1-806CTGlendale, AZ+1-623MSTReno, NV+1-775PTBaton Rouge, LA+1-225CTIrvine, CA+1-949PTBoise, ID+1-208MTBirmingham, AL+1-205CTSpokane, WA+1-509PTRichmond, VA+1-804ETSalt Lake City, UT+1-801MTDes Moines, IA+1-515CTRochester, NY+1-585ETHartford, CT+1-860ETProvidence, RI+1-401ETCharleston, SC+1-843ETLittle Rock, AR+1-501CTJackson, MS+1-601CT
05 — FROM ANY COUNTRY

How to call USA from any country.

Every country uses a different international exit code before the +1 USA country code. From any mobile, the + symbol replaces the exit code automatically — so +1 212 555 0142 works worldwide. Below are the exact dialing patterns from the 24 most-common origin countries.

From countryExit codeFull dialing patternMobile (+)
United Kingdom0000 1 NPA NXX XXXX+1 NPA NXX XXXX
India0000 1 NPA NXX XXXX+1 NPA NXX XXXX
Canada—1 NPA NXX XXXX (NANP — no exit code)+1 NPA NXX XXXX
Australia00110011 1 NPA NXX XXXX+1 NPA NXX XXXX
Germany0000 1 NPA NXX XXXX+1 NPA NXX XXXX
France0000 1 NPA NXX XXXX+1 NPA NXX XXXX
Mexico0000 1 NPA NXX XXXX+1 NPA NXX XXXX
Japan010010 1 NPA NXX XXXX+1 NPA NXX XXXX
China0000 1 NPA NXX XXXX+1 NPA NXX XXXX
Brazil00 2100 21 1 NPA NXX XXXX+1 NPA NXX XXXX
Russia8 108 10 1 NPA NXX XXXX+1 NPA NXX XXXX
Pakistan0000 1 NPA NXX XXXX+1 NPA NXX XXXX
Bangladesh0000 1 NPA NXX XXXX+1 NPA NXX XXXX
Philippines0000 1 NPA NXX XXXX+1 NPA NXX XXXX
Nigeria009009 1 NPA NXX XXXX+1 NPA NXX XXXX
South Africa0000 1 NPA NXX XXXX+1 NPA NXX XXXX
Egypt0000 1 NPA NXX XXXX+1 NPA NXX XXXX
Saudi Arabia0000 1 NPA NXX XXXX+1 NPA NXX XXXX
UAE0000 1 NPA NXX XXXX+1 NPA NXX XXXX
Italy0000 1 NPA NXX XXXX+1 NPA NXX XXXX
Spain0000 1 NPA NXX XXXX+1 NPA NXX XXXX
Netherlands0000 1 NPA NXX XXXX+1 NPA NXX XXXX
South Korea001001 1 NPA NXX XXXX+1 NPA NXX XXXX
Singapore001001 1 NPA NXX XXXX+1 NPA NXX XXXX

Tip: NPA = 3-digit area code · NXX = 3-digit exchange · XXXX = 4-digit subscriber. The full E.164 international format is always +1 NPA NXX XXXX — 11 digits total.

06 — WHY +1

Six reasons people pick a US number.

The only single-digit country code in active use — recognised by every phone in the world. And that's just the start.

01

Recognised everywhere

+1 is the most-dialed country code on Earth. Customers, banks and apps instantly trust a US number — no second-guessing.

02

Beyond just the US

Calling Toronto, Kingston, Hamilton, or San Juan? Your +1 reaches them all under the same numbering plan — no extra plan, no extra setup.

03

SMS & verification ready

Bank OTPs, marketplace codes, and social-app verifications arrive in seconds. Most US-only services accept a CallMama number.

04

Pick your local identity

A 212 reads as Manhattan. A 415 reads as San Francisco. An 808 reads as Honolulu. Customers see the number that fits the city you sell into.

05

Mobile & landline alike

Unlike most countries, the +1 prefix doesn't change for mobile or landline. Carriers don't charge differently either — one rate, one format.

06

Built for OTT apps

Receive iMessage, WhatsApp, Telegram and Signal verifications on the same number you use for calls. One identity across every messenger.

READY WHEN YOU ARE

Sound local. Anywhere in America.

Pick your area code, start calling, texting, and receiving verifications from real American customers.

Get your US number Browse area codes
07 — INCLUDED

smart calling, built in.

Same six features come standard on every CallMama USA number — no upsell tiers, no per-feature charges.

Call forwarding

Route any incoming call to your real mobile, a teammate, or voicemail — by schedule, caller, or custom rule.

Call recording

One-tap recording for client calls and consults. Files store securely in your dashboard for replay or download.

Custom caller ID

Decide which local number shows on outbound calls so contacts always see a familiar prefix.

Voicemail to inbox

Voicemails arrive as audio plus a written transcript in your inbox — read or listen, no missed message.

Two-way SMS & MMS

Send and receive text and image messages from your number — same line works on web, iOS, and Android.

International calling

Outbound calls to 200+ countries from the same app. Skip carrier roaming and international add-ons.

08 — HOW IT WORKS

Your USA number, in three simple steps.

From "I want a USA number" to making your first call — three taps and you're live.

01 · STEP

Pick your digits

Choose the area code or city prefix that matches where you sell.

+1(212)555-0142
+1(415)555-0118Pick
+1(808)555-0091
02 · STEP

Confirm in the app

Six-digit confirmation drops into the app. No documents to upload, no waiting room, no callbacks.

ENTER VERIFICATION CODE
492803
03 · STEP

Start calling

Your USA line is live. Start dialing, texting, and being reached — exactly the way a local would.

Charles Brown+1 (917) 232-6677
09 — FULL DIRECTORY

Every country code, searchable.

Name, country code, ISO 3166 alpha-2 & alpha-3, exit code, and ITU zone. Filter by continent or search by name or code.

CountryCodeISO-2ISO-3ExitZone
Afghanistan+93AFAFG009
Albania+355ALALB003
Algeria+213DZDZA002
American Samoa+1ASASM0111
Andorra+376ADAND003
Angola+244AOAGO002
Anguilla+1AIAIA0111
Antarctica+672AQATA006
Antigua and Barbuda+1AGATG0111
Argentina+54ARARG005
Armenia+374AMARM003
Aruba+297AWABW002
Australia+61AUAUS00116
Austria+43ATAUT004
Azerbaijan+994AZAZE009
Bahamas+1BSBHS0111
Bahrain+973BHBHR009
Bangladesh+880BDBGD008
Barbados+1BBBRB0111
Belarus+375BYBLR8103
Showing 20 of 245 country codes
10 — ANSWERS

Frequently asked.

The country code for the USA is +1. It is the international dialing prefix used to call any phone number in the United States, assigned by the ITU in 1947.
The +1 country code was chosen for the USA in 1947 because the North American Numbering Plan (NANP) was the largest established telephone system at the time. A single-digit code was the most efficient option for the busiest numbering region, and the ITU reserved the entire "1" zone for what became NANP.
From the UK, dial 00 (UK exit code), then 1 (USA country code), then the 3-digit US area code, then the 7-digit local number. Example: 00 1 212 555 0100 to call New York. On a mobile, replace 00 with the + sign — so +1 212 555 0100 works from any country.
From India, dial 00 (India's exit code), then 1, then the area code and local number. Example: 00 1 213 555 0100 for Los Angeles. India uses 00 as a standard international access prefix on both landline and mobile.
From Australia, dial 0011 (Australia's exit code on Telstra), then 1, then the area code and local number. Example: 0011 1 312 555 0100 for Chicago. Or simply use +1 from any Australian mobile.
A US phone number in international format is written as +1 NPA NXX-XXXX, for example +1 212 555 0100. NPA is the 3-digit area code, NXX is the central office code, and XXXX is the subscriber number. The total length is always exactly 10 digits after the +1.
NANP stands for the North American Numbering Plan — a unified telephone numbering system that covers the USA, Canada, and 25 Caribbean and Pacific territories. All NANP countries share the +1 country code and use a 10-digit number format, distinguished only by their 3-digit area code.
The USA has more than 335 active area codes covering 50 states, the District of Columbia, and 5 territories. California has the most (38), followed by Texas (28). Eleven smaller states still operate with a single area code — Alaska, Hawaii, Idaho, Maine, Montana, New Hampshire, North Dakota, Rhode Island, South Dakota, Vermont and Wyoming.
The +1-800 prefix is the original US toll-free range. Calls to 800 numbers are free for the caller inside NANP; the receiving business pays the connection cost. Other US toll-free prefixes include 888, 877, 866, 855, 844 and 833, allocated by the FCC as each block filled up over the decades.
+1-684 is the country code for American Samoa, a US territory in the Pacific Ocean. It uses the +1 country code because American Samoa is part of the North American Numbering Plan, but its 3-digit area code 684 is reserved for the territory.
Unlike most countries, the USA does not use a separate prefix for mobile and landline numbers. Both use +1 and the same 10-digit format. There is no way to tell from the number alone whether it's a mobile or landline — and most carriers charge identically for either.
Yes. CallMama issues a real American number from anywhere with internet access — no carrier visit, no paperwork, no in-person verification. Works from any country with Wi-Fi or mobile data.
The USA spans six time zones: Eastern (UTC−5), Central (UTC−6), Mountain (UTC−7), Pacific (UTC−8), Alaska (UTC−9) and Hawaii-Aleutian (UTC−10). Most of the country observes Daylight Saving Time from the second Sunday of March to the first Sunday of November. Arizona and Hawaii stay on standard time year-round.
They mean the same thing — both indicate the +1 USA country code. + is the standard international notation defined in ITU-T E.123 and works from any mobile phone worldwide. 00 or 011 is the manual exit code your country uses to "go international" before dialing the country code. From a US landline, you'd dial 011 + country code.
Yes — since October 2021, 10-digit dialing is required for every local call in the US. This change was triggered by the 988 Suicide & Crisis Lifeline, which created conflicts with 82 area codes that have a 988 prefix. Before the change, you could often dial just 7 digits for local calls.

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