Houston Inbound International Dialing

Procedure to Dial Houston, TX from Any Country

Follow this basic dialing procedure to place an international long-distance call from any country worldwide to a landline or mobile phone number in Houston, Texas.

The procedure outlined below is for direct international dialing from a landline or mobile phone in the home or office.

Additional or different dialing steps may be required when calling Houston using calling card or VoIP service.

1. Dial international access code / IDD:   ddd 

Dial your country's international access code (aka international direct dial code or IDD) to initiate a phone call to Houston.

Lookup your international access code here.

Note that some mobile operators do not require dialing an IDD and/or allow use of substitute characters (such as '+') in lieu of dialing an IDD. As well, in many cases you don't dial an IDD when using a calling card or VoIP service.

2. Dial United States country code: + 1 

Dial country code +1 to reach any location in United States, including Houston. Country codes are also known as ISDs or international subscriber dialing codes.

If your Houston phone number starts with a ' 1 ' - e.g., 1 281 224 1800, don't add a second ' 1 '. Dial just a single ' 1 ' after the international access code.

3. Dial a 10-digit Houston phone number

All Houston phone numbers are 10-digits long with two parts:

a. Dial a 3-digit Houston area code:  aaa 

b. Dial a 7-digit local subscriber number: nnn nnnn

Some common Houston area codes are: 281 , 713 , and 832 . List of Houston area codes

Lookup a Houston phone number

Steps to Dial Houston from a Specific Country

Follow the links below for country-specific dialing instructions for calling Houston landline and mobile phones. These pages include originating country access codes and other information.

Procedure to Dial Houston, TX from Any Country

Follow this basic dialing procedure to place an international long-distance call from any country worldwide to a landline or mobile phone number in Houston, Texas.

The procedure outlined below is for direct international dialing from a landline or mobile phone in the home or office.

Additional or different dialing steps may be required when calling Houston using calling card or VoIP service.

1. Dial international access code / IDD:   ddd 

Dial your country's international access code (aka international direct dial code or IDD) to initiate a phone call to Houston.

Lookup your international access code here.

Note that some mobile operators do not require dialing an IDD and/or allow use of substitute characters (such as '+') in lieu of dialing an IDD. As well, in many cases you don't dial an IDD when using a calling card or VoIP service.

2. Dial United States country code: + 1 

Dial country code +1 to reach any location in United States, including Houston. Country codes are also known as ISDs or international subscriber dialing codes.

If your Houston phone number starts with a ' 1 ' - e.g., 1 281 224 1800, don't add a second ' 1 '. Dial just a single ' 1 ' after the international access code.

3. Dial a 10-digit Houston phone number

All Houston phone numbers are 10-digits long with two parts:

a. Dial a 3-digit Houston area code:  aaa 

b. Dial a 7-digit local subscriber number: nnn nnnn

Some common Houston area codes are: 281 , 713 , and 832 . List of Houston area codes

Lookup a Houston phone number

Steps to Dial Houston from a Specific Country

Follow the links below for country-specific dialing instructions for calling Houston landline and mobile phones. These pages include originating country access codes and other information.