Japan Phone Number Format
Country code +81 · ISO JP
How to format, dial, and validate Japan phone numbers, with live examples.
Country Code
+81
National Prefix
0
International Prefix
010
Mobile Portability
Yes
Try it now
Pre-filled with a valid fixed line number for Japan. Edit it and click "Try It" to see the parsed result.
Number Types & Example Formats
Each Japan phone-number type supported by libphonenumber, with a real example formatted three ways.
| Type | Length | National | International | E.164 |
|---|---|---|---|---|
| Fixed Line | 9 digits | 03-1234-5678 | +81 3-1234-5678 | +81312345678 |
| Mobile | 10 digits | 090-1234-5678 | +81 90-1234-5678 | +819012345678 |
| Pager | 10 digits | 020-1234-5678 | +81 20-1234-5678 | +812012345678 |
| Personal Number | 9 digits | 060-123-4567 | +81 60-123-4567 | +81601234567 |
| Premium Rate | 9 digits | 0990-123-456 | +81 990-123-456 | +81990123456 |
| Toll Free | 8–17 digits | 0120-123-456 | +81 120-123-456 | +81120123456 |
| UAN | 9 digits | 0570-123-456 | +81 570-123-456 | +81570123456 |
| VoIP | 10 digits | 050-1234-5678 | +81 50-1234-5678 | +815012345678 |
How to Dial Japan Numbers
From abroad
Dial +81 followed by the national number, dropping any leading 0.
Within Japan
Dial 0 before the local number to make a domestic call.
Dialing out of Japan
Dial 010 followed by the destination country code and number.
Area Codes
Browse Japan area codes with cities, timezones, and example numbers for each.
Validate a Japan Number with the API
Send the number to the free libphonenumber API to get the parsed country, type, formatting, and validity.
curl https://libphonenumberapi.com/api/phone-numbers/+81312345678Frequently Asked Questions
What is the country code for Japan?
└ The international country code for Japan is +81. Use this prefix when dialing Japan numbers from another country.
How long is a Japan phone number?
└ Japan phone numbers are typically 9 digits, not including the +81 country code.
How do I dial a Japan phone number from abroad?
└ From abroad, dial +81 followed by the national number, dropping any leading 0. Within Japan, dial 0 before the local number.
How do I validate a Japan phone number programmatically?
└ Send a GET request to https://libphonenumberapi.com/api/phone-numbers/<number>. The free libphonenumber API returns the parsed country, format, type, and validity for any number — no API key required.