How to Call Houston, Texas

CallingHouston.com provides detailed information for making international long distance telephone calls to Houston, Texas, USA from any country in the world.

United States phone numbers are highly standardized, so Houston phone numbers follow the same format used throughout the US. Mobile numbers and landline numbers have identical 10-digit formats.

Dial Houston, United States

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With a population of about 5.7 million people, the Houston metropolitan area is the sixth largest city in the United States. Houston is located in southeastern Texas on relatively flat coastal plains relatively close to the Gulf of Mexico. The Houston area was originally settled in the late-1830's by two New York real estate entrepreneurs. Over time, the city developed along several dimensions, including oil exploration, the cotton trade, and inland port operations. Houston has a humid subtropical climate with summer daily high temperatures normally over 90 °F and winter daily highs in the mid-60's (°F). Houston is a fairly diverse city with sizable populations of whites, African Americans, and Hispanics. English is the most widely spoken language with Spanish also very common. more on Houston >>>>

Houston Dialing Codes

To make an international phone call to Houston, TX, the following dialing codes will be required.

US phone numbers are highly standardized and are always 10-digits long. They are almost universally written to include all 10-digits. This makes dialing US numbers a bit easier than in some countries.

Type of Dialing Code Dialing Code Format Find Dialing Codes
International access code
(specific to your originating country)
ddd  Lookup international access codes
United States country code Lookup other country codes
Houston area code
(3-digits; always included in written phone numbers)
aaa  Find Houston area codes
Houston landline subscriber numbers
(7-digits; always included in written phone numbers)
nnn nnnn  Find Houston phone numbers
Houston mobile subscriber numbers
(7-digits; always included in written phone numbers)
nnn nnnn  Find Houston phone numbers

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Phone Number Format for International Calls

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

International Phone Number Format
to Call Houston, TX

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

Taking this general format, you need to plug in the outbound international access code for your originating country and the complete 10-digit phone number in Houston.

In the United States, landline numbers and cell phone numbers have identical 10-digit formats.

More information:

More on int'l phone numbers >>>>>

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Landline vs. Mobile Phone Number Formats

In Houston and throughout the United States, landline phones and mobile phones have identical phone number formats. Both types of phone numbers are 10-digits long, including a 3-digit area code and a 7-digit subscriber number.

The complete international phone numbers you should use to reach the two types of phones are shown below.

Landline vs. Mobile Phone Number Format
Houston landline phone numbers ddd 1 aaa nnn nnnn 
Houston mobile phone numbers ddd 1 aaa nnn nnnn 

More on landline vs. mobile dialing >>>>>

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Call Houston from Selected Countries

For dialing information on calling Houston from specific countries, please follow the country links below. On these pages, you will find country-specific dialing codes, phone number formats, and step-by-step dialing instructions for calling Houston, TX from your country.

If your country is not listed, please follow the Houston dialing procedure.

Call Houston, TX from Selected Countries
The Americas
Call Houston from Brazil
Call Houston from Canada
Call Houston from Mexico
Europe
Call Houston from France
Call Houston from Germany
Call Houston from Ireland
Call Houston from Italy
Call Houston from the Netherlands
Call Houston from the UK
Middle East & Africa
Call Houston from Bahrain
Call Houston from Israel
Call Houston from Kuwait
Call Houston from Qatar
Call Houston from Saudi Arabia
Call Houston from South Africa
Call Houston from the UAE / Dubai
Asia Pacific
Call Houston from Australia
Call Houston from China
Call Houston from India
Call Houston from Japan
Call Houston from New Zealand
Call Houston from Pakistan
Call Houston from the Philippines
Call Houston from Singapore
Call Houston from South Korea
Call Houston from Taiwan

Additional countries >>>>>

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Call Houston from Any Country

To make an international call to Houston, TX, USA, you first need to dial the international access code (aka 'IDD') for your originating country. You can lookup the international access code for your country in the widget below.

Find an International Access Code / IDD
Calling from...
Your IDD
Your IDD will print here

Insert your IDD at the maroon x's below to create a complete international phone number for dialing Houston.

  • Phone number format to call a Houston landline number:
    'ddd 1 aaa nnn nnnn '
  • Phone number format to call a Houston mobile number:
    'ddd 1 aaa nnn nnnn '

Notes:

  • Some countries, e.g., Australia, France, Singapore, use more than one IDD to designate specific carriers, specific countries, or other purposes. Be sure to use the correct code for your carrier or calling plan.
  • A '~' symbol indicates a dialing pause. Dial any numbers before the '~', then wait for tone before continuing to dial.
  • Dial only the numerical digits shown - any other characters are informational only.

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