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, FYIcenter.com 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.

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Country/Region:	Japan
Phone #

Validation result by FYIcenter.com:

Specified Phone Number: Invalid ✘

"6-6344-2355" is not a valid phone number format for Japan

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

   Prefix: long distance or international
   --------------------------------------
   |   Carrier or area code 
   |   --------------------
   |   |   Subscriber number
   |   |   -----------------
   v   v   v
   0   A   SSSS-SSSS, A - Local format
  +81  A   SSSS-SSSS, A - International format

Most telephone numbers in Japan have 19 digits and are written in the format of "A-SSSS-SSSS, AA SSS-SSSS". Here are some examples: 6-6344-2355; 3-5757-8111; 11-707-1122, 93-512-7320.

When dialing locally inside Japan, the long distance prefix of "0" is required. So the format becomes "0 A-SSSS-SSSS, AA SSS-SSSS".

When dialing from outside of Japan, the international dial-in prefix "+81" is required. So the format becomes "+81 A-SSSS-SSSS, AA SSS-SSSS".

When dialing from Japan to other countries, the international dail-out prefix "+" or "010" required.

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

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

 

⇒ What Is Trunk or Long Distance Call Prefix?

⇐ Generating Phone Numbers for a Country/Region

⇑ Phone Number Related Terms and Tools

⇑⇑ Phone Number FAQ