Call Worldwide from Japan
Use country code +81
Start the call from any browser tab. There is no download, and you only add a number to receive inbound calls.
Product facts
- Outbound: No dedicated number required.
- Inbound: Requires US/Canada digital number ($2.14 to $5/month).
- No apps: Works in Chrome, Safari, Edge, Firefox.
Product facts
- Outbound: No dedicated number required.
- Inbound: Requires US/Canada digital number ($2.14 to $5/month).
- No apps: Works in Chrome, Safari, Edge, Firefox.
How to Call Internationally from Japan
Simple steps for calling any country from Japan and tips for mobile and landline numbers.
International Prefix
Dial 010 for calls from Japanese landlines. On mobile or in web apps, use the plus sign to automatically add the correct international access.
(Tip: With StartACall just type + and the country code.)
Country Code
After the prefix enter the destination country code. For example 1 for the USA, 44 for the UK, and 61 for Australia.
Area Code and Number
Dial the area code and local number. Remove the leading zero from domestic prefixes when adding a country code.Example: 03-1234-5678 becomes +81 3 1234 5678
Dialing Examples
International dialing from Japan is straightforward when you remove domestic trunk zeros. Use + on mobile or web to simplify the process.
Japan City Codes
Common area codes for major Japanese cities. When calling from abroad drop the leading zero.
| City | Region | Area Code |
|---|---|---|
| Tokyo | Kanto | 3 |
| Osaka | Kansai | 6 |
| Nagoya | Chubu | 52 |
| Sapporo | Hokkaido | 11 |
| Fukuoka | Kyushu | 92 |
| City | Region | Area Code |
|---|---|---|
| Hiroshima | Chugoku | 82 |
| Sendai | Tohoku | 22 |
| Kyoto | Kansai | 75 |
| Kawasaki | Kanto | 44 |
| Yokohama | Kanto | 45 |
Mobile Dialing Rules
How Japanese mobile numbers work when calling internationally.
Mobile Prefixes
Most mobile numbers in Japan start with 070, 080, or 090. When calling from abroad drop the leading zero and use the country code like +81 90 1234 5678.
Use + to simplify
When using web dialers or mobiles, start with + then the country code and number. StartACall accepts + formats so you can paste international numbers directly.
International Calling from Japan
Direct from your browser
StartACall connects your browser to phone networks worldwide. No apps, instant setup, and enterprise-grade reliability for business and personal calls.
- Call any mobile or landline globally from Chrome, Safari, or Firefox
- Purchase and manage virtual numbers in 190+ countries
- and real-time copilot to assist on calls
- Real-time analytics for call duration and usage
Flexible Billing
Add credits and use them when you need. No complex contracts to start.
Global Reach
Reach customers and colleagues in virtually any country with reliable PSTN termination.
Secure
End-to-end security practices and encrypted WebRTC connections protect your conversations.
Instant Setup
Sign up and start calling within seconds. No PBX or softphone configuration required.
Frequently Asked Questions
What is the international prefix in Japan?
The standard prefix is 010 for landlines. You can also use + on mobile phones and web dialers, which is the easiest option.
Do I keep the leading zero when calling abroad?
No. Remove the leading zero from area codes and mobile prefixes when adding the country code. For example 03 becomes 3 after +81.
Can I call both mobile and landline numbers?
Yes. StartACall supports calling mobile and fixed-line numbers worldwide using your browser and our PSTN gateway.
Do I need to install anything to start calling?
No. StartACall works entirely in the browser. Log in and make or receive calls immediately without downloads.
Ready to call globally from Japan?
Sign up and start calling in seconds from your browser. No credit card required to register.