81 Country Code: Japan (+81)
+81 is the country code for Japan. If you searched "81 country code", "country code 81", "0081 country code", or "+81 country code" — they all refer to Japan. The code is also called the 81 dialing code, 81 phone code, or 81 ISD code, and is assigned by the International Telecommunication Union (ITU) under the E.164 standard.
Japanese landline area codes range from 1 digit for Tokyo (03) and Osaka (06) to 5 digits for rural areas, always dialed with a leading 0 domestically. Mobile numbers are always 11 digits starting with 070, 080, or 090, becoming +81 70, +81 80, or +81 90 internationally. IP phones use 050-prefixed numbers.
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Japanese mobiles are longer than landlines — always 11 digits starting 070, 080, or 090.
Japan Phone Number Format
International Format Example
Domestic vs International
Drop 0 and prepend +81.
Major City Area Codes in Japan
Area codes for the largest cities in Japan. When dialing from abroad, prepend +81 and drop the leading 0.
| City / Region | Area Code | Domestic Form | From Abroad |
|---|---|---|---|
| Tokyo | 3 | 03 | +81 3 |
| Osaka | 6 | 06 | +81 6 |
| Yokohama | 45 | 045 | +81 45 |
| Nagoya | 52 | 052 | +81 52 |
| Kyoto | 75 | 075 | +81 75 |
| Sapporo | 11 | 011 | +81 11 |
Mobile Networks in Japan
- 70
- 80
- 90 (dial 070/080/090 domestically)
- NTT Docomo
- KDDI (au)
- SoftBank
- Rakuten Mobile
Japan Telephone System Facts
Calling Japan from Your Browser
To place a call to Japan, dial +81 followed by the local number in the Kinvo browser dialer. Pay-as-you-go, no app required.
Call Japan from Your Browser
Call any Japan number (+81) directly from Chrome, Firefox, Safari, or Edge. No install required. Use it in under 2 minutes.
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Frequently Asked Questions: Japan Country Code
Which country is country code 81?
Country code 81 belongs to Japan. The full international dialing code is +81, also written as 0081 when dialing from countries that use 00 as an international access code, or +81 when dialing from a mobile phone.
What is the country code for Japan?
+81 is the international dialing code for Japan, assigned by the ITU under E.164. The ISO 3166-1 alpha-2 code is JP.
What are the main area codes in Japan?
The largest cities in Japan use these area codes: Tokyo (3), Osaka (6), Yokohama (45), Nagoya (52). When calling from abroad, prepend +81.
Who are the main mobile carriers in Japan?
The major mobile operators in Japan are NTT Docomo, KDDI (au), SoftBank, Rakuten Mobile. Kinvo routes calls to every Japan mobile carrier at the same per-minute rate — no hidden surcharges for premium networks.
Do I drop the 0 when calling Japan from abroad?
Yes. Japan uses 0 as its domestic trunk prefix. When dialing from another country, remove it and replace with +81. The trunk prefix is only needed for long-distance calls within Japan.
What is the emergency number in Japan?
The emergency services number in Japan is 110 (police) / 119 (fire, ambulance). Emergency numbers cannot be dialed via Kinvo or any VoIP service — use a mobile network or landline for life-threatening emergencies.
Can I call Japan from my browser?
Yes. Kinvo connects calls to Japan via WebRTC directly from Chrome, Firefox, Safari, or Edge. No app download. Sign up, add credits from $5, and dial +81 followed by the local number.