Validating Phone Number Formats for a Country/Region


How to validate phone number formats for a specific country or region?

Different countries or regions use different phone number formats. To help you to validate phone number formats used in a specific country or region, has designed this online tool. All you need to do is to end a phone number of a specific country/region in the form below, and click the "Validate" button. The validation result will be presented back to you.

Phone #



Validation result by

Specified Phone Number: Valid

"22 52 54 14" matches the format of "AA SS SS SS"

Most phone numbers in Chad are written in the following formats:

   Prefix: long distance or international
   |   Carrier or area code 
   |   --------------------
   |   |   Subscriber number
   |   |   -----------------
   v   v   v
       AA  SS SS SS     - Local format
  +235 AA  SS SS SS     - International format

Most telephone numbers in Chad have 8 digits and are written in the format of "AA SS SS SS". Here are some examples: 22 52 54 14; 66 28 45 18.

When dialing locally inside Chad, dial the phone number directly as "AA SS SS SS". Long distance prefix is not needed.

When dialing from outside of Chad, the international dial-in prefix "+235" is required. So the format becomes "+235 AA SS SS SS".

When dialing from Chad to other countries, the international dail-out prefix "+" or "00" required.

To validate phone number formats for other countries or regions, see our Generic Phone Number Format Validator.

To see phone number examples in Chad, try our Test Phone Number Generator.


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2023-12-02, 4886🔥, 0💬