What is an ISD Code?

ISD (International Subscriber Dialling) codes are, also called IDD (International Direct Dialling). These ISD codes / International calling codes defined by ITU ( International Telecommunication Union).

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ISD Code Details of United States
COUNTRY NAME United States
ISD CODE +1

(When dialing use 001 Or +1)

Other Staticstic of United States

ISO2 US
ISO3 USA
ISO NUMARIC 840
TOP LEVEL DOMAIN.us
FIPS US
GEO NAME ID 6252001
E.164 1
CONTINENT North America
CAPITAL Washington
CAPITAL TIMEZONE America/New_York
CURRENCY Dollar
LANGUAGE CODES en-US,es-US,haw,fr
LANGUAGES SPEAKEnglish 82.1%, Spanish 10.7%, other Indo-European 3.8%, Asian and Pacific island 2.7%, other 0.7% (2000 census)
AREA (KM2) 9629091 KM2
INTERNET HOSTS 505000000
INTERNET USERS 245000000
PHONES (MOBILE) 310000000
PHONES (LANDLINE) 139000000
GDP $16720000000000

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About United States (+1) ISD Code

United States Time

General Information -

The ISD Code of United States is : +1
When dialing use 001 Or +1

United States Statistics -

United States is part of the continent of North America. The Capital of United States is: Washington. Capital timezone is: America/New_York. Currency is: Dollar.
Language Codes of United States : en-US,es-US,haw,fr
Languages speak in United States : English 82.1%, Spanish 10.7%, other Indo-European 3.8%, Asian and Pacific island 2.7%, other 0.7% (2000 census)
ISO Alpha-2 Code of United States is : US
ISO Alpha-3 Code of United States is : USA
ISO 3166-1 numeric (or numeric-3) Code of United States is : 840
FIPS (Federal Information Processing System) Code is : US
E.164 (The international telephone numbering plan) : 1
The top label domain of the United States is : .us
Internet host in United States is : 505000000
Internet users in United States is : 245000000
Mobile phones in United States is : 310000000
Landline phone in United States is : 139000000
Area of United States is : 9629091 KM2
GEO Name ID United States is : 6252001
GDP of United States is : $16720000000000

FAQ

The ISD Code of United States is : +1

The ISO Alpha-2 Code of United States is - US

The ISO Alpha-3 Code of United States is - USA

The ISO 3166-1 numeric (or numeric-3) Code of United States is - 840

The FIPS (Federal Information Processing System) Code of United States is - US

The E.164 (The international telephone numbering plan) Code of United States is - 1

General Information About ISD Code


What is ISD Code (International Subscriber Dialling)?

ISD (International Subscriber Dialling) codes are, also called IDD (International Direct Dialling). These ISD codes / International calling codes defined by ITU ( International Telecommunication Union).

How to Dial?

International Carrier Access Code (For ex, from India dial : 00 or + sign ) must be dialed before the country calling code, in order to select access to the international circuits of the network. Then Area code (if there), then the actual phone number to be dialed.

Dial Pattern : [Exit Code] + [ISD Code] + [Area Code] + [Phone Number]

  • ISD prefix for International Carrier access, which is specific to the country from which the caller is dialing, but often it is 00 or 011 or prefix is specified with a plus sign (+). This prefix code is to be dialed before the country code.

  • ISD Code (if applicable) - This is specific to a country. Some times same ISD code will be shared among the different countries.

  • Area code & Phone Number - Which are actual telephone you want to contact. This format will vary from county to country.