Dialing Codes for Selected Countries

The table below shows the complete international phone number format for calling Houston, TX from selected countries worldwide. The table includes the international direct dial code (or IDD) for each country.

Dialing codes for Houston, United States

The table highlights the dialing differences between dialing Houston landline phones and Houston mobile phones. The landline phone number format is marked with an 'l' and the mobile phone format is marked with an 'm'.

Please consult with your international phone operator to determine if additional dialing steps are required to secure an international phone line from your carrier.

International Phone Number Format to Call Houston

To make an international phone call to Houston, TX, you will need to dial a phone number formatted roughly as follows:

International Phone Number Format

ddd  1  aaa nnn nnnn
international
access code
US country
code
area
code
local subscriber
number

Aside from the US country code, all the other dialing code still need to be plugged in.

The international access code (or IDD) will be 1- to 4-digits long, depending on your country. You can find the IDD for selected countries below. If your country is not listed, please look up other IDDs here.

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Phone Number Formats for Calling Houston

The phone number formats for making international calls to Houston landline or mobile phone numbers are listed below for selected countries.

Follow country links for additional dialing details. If your country is not listed, you can find general Houston dialing information here.

International Dialing Codes for Selected Countries

Call Houston from... IDD Your phone number
should look like this
The Americas
Call Houston from Brazil 00xx*  00xx 1 aaa nnn nnnn
Call Houston from Canada n/a** 1 aaa nnn nnnn
Call Houston from Mexico 00  00 1 aaa nnn nnnn
Europe
Call Houston from France 00*  00 1 aaa nnn nnnn
Call Houston from Germany 00  00 1 aaa nnn nnnn
Call Houston from Ireland 00  00 1 aaa nnn nnnn
Call Houston from Italy 00  00 1 aaa nnn nnnn
Call Houston from the Netherlands 00  00 1 aaa nnn nnnn
Call Houston from Turkey 00  00 1 aaa nnn nnnn
Call Houston from the UK 00  00 1 aaa nnn nnnn
Middle East & Africa
Call Houston from Bahrain 00  00 1 aaa nnn nnnn
Call Houston from Israel 00*  00 1 aaa nnn nnnn
Call Houston from Kuwait 00  00 1 aaa nnn nnnn
Call Houston from Qatar 00  00 1 aaa nnn nnnn
Call Houston from Saudi Arabia 00  00 1 aaa nnn nnnn
Call Houston from South Africa 00  00 1 aaa nnn nnnn
Call Houston from UAE / Dubai 00  00 1 aaa nnn nnnn
Asia Pacific
Call Houston from Australia 0011  0011 1 aaa nnn nnnn
Call Houston from China 00  00 1 aaa nnn nnnn
Call Houston from India 00  00 1 aaa nnn nnnn
Call Houston from Japan 010*  010 1 aaa nnn nnnn
Call Houston from New Zealand 00  00 1 aaa nnn nnnn
Call Houston from Pakistan 00  00 1 aaa nnn nnnn
Call Houston from Philippines 00  00 1 aaa nnn nnnn
Call Houston from Singapore 001*  001 1 aaa nnn nnnn
Call Houston from South Korea 00xxx*  00xxx 1 aaa nnn nnnn
Call Houston from Taiwan 002  002 1 aaa nnn nnnn

NOTES:

* This country has multiple IDDs. Follow links for details.

** No IDD is required when dialing Houston from Canada, Jamaica, or any other country within the North American Numbering Plan (NANP).

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