Gọi điện, SMS, video và MCM AI không giới hạn trên mọi đường dây — một lần đăng nhập, không cần phần cứng.
Japan country code +81 — call Japan & get a number.
In a country where a misdialed digit feels like a broken promise, precision matters. Here are the exact +81 formats from the US, UK, Australia and across Asia, every major area code, live mobile prefixes, current time and weather — and the path to your own Japan virtual number with MCM.
- 17,500+ Businesses
- 99.99% Uptime SLA
- 190+ Countries
- 4.8/5 on G2
Japan at a glance
The numbers and facts you need before you dial.
What is the country code for Japan?
+81 is Japan's call sign to the world. Add it after your own exit code and any Japanese number is within reach. The one rule that trips up newcomers: the leading 0 that every domestic number wears at home gets retired the moment you cross the border. Tokyo's 03-1234-5678 becomes +81 3 1234 5678 abroad — the 0 was always a domestic courtesy, not part of the real address.
Code +81 was assigned to Japan by the ITU under the E.164 plan. The “+” means “dial your local international exit code”; on a mobile, press and hold 0 to type it.
All four mean the same thing — they connect your call to Japan.
How to call Japan from anywhere
Think of it as four neat segments, assembled in order: your exit code, then 81, then the area or mobile code with its leading 0 removed, then the local digits. Get the sequence right and it connects on the first try — exactly the kind of reliability Japan expects.
Full example: +81 03 XXX XXXX — drop the local leading 0 when calling from abroad.
Japan phone number format explained
At home, every Japanese number opens with a 0 — the trunk prefix — which falls away for international dialing. Count the digits and you'll find a tidy logic: landlines run 10 digits with the 0, mobiles run 11. There's a quiet hierarchy here too — the bigger the city, the shorter its area code.
Điện thoại cố định
Area code (1–4 digits, starts with 0) + subscriber number. The major hubs claim the shortest codes: Tokyo 03, Osaka 06. Format example: 03-1234-5678 → +81 3 1234 5678.
Điện thoại di động
Mobiles open with 070, 080 or 090, then 8 digits. Format example: 090-1234-5678 → +81 90 1234 5678. IP phones sit on 050; toll-free lines on 0120 / 0800.
Japan area codes — major cities
Bỏ số 0 ở đầu địa phương khi gọi từ nước ngoài.
| Thành phố | Vùng đất | Mã vùng |
|---|---|---|
| Tokyo | Kantō | 03 |
| Osaka | Kansai | 06 |
| Nagoya | Chūbu | 052 |
| Yokohama | Kantō | 045 |
| Kyoto | Kansai | 075 |
| Kobe | Kansai | 078 |
| Sapporo | Hokkaidō | 011 |
| Sendai | Tōhoku | 022 |
| Hiroshima | Chūgoku | 082 |
| Fukuoka | Kyūshū | 092 |
| Kawasaki | Kantō | 044 |
| Kitakyushu | Kyūshū | 093 |
Japan mobile network prefixes
The prefix after +81 tells you which network issued the SIM — though number portability means it no longer guarantees the operator.
NTT Docomo
au (KDDI)
SoftBank
Rakuten Mobile
Japan time zone
One nation, one clock. From Okinawa to Hokkaido, Japan runs entirely on Japan Standard Time (JST), UTC+9, and has never adopted daylight saving — so the offset you memorize in January still holds in July. No spring-forward arithmetic, no autumn surprises.
Punctuality is currency in Japanese business, so land your call inside working hours. US callers catch Japan's evening with an early-morning dial; UK and European callers reach the Japanese late afternoon between 08:00 and 10:00 their time. Offices keep 09:00–18:00 JST.
Mở công cụ lập kế hoạch tương tác về thời gian gọi tốt nhấtEmergency numbers in Japan
Free to call from any Japan phone, landline or mobile.
Common mistakes when calling Japan
Hầu hết mọi cuộc gọi quốc tế không thành công đều là do vấn đề định dạng chứ không phải do mạng.
Trusting the prefix to name the carrier: Japan was an early mover on number portability, so 090, 080 and 070 reveal nothing about whether a line lives on Docomo, au or SoftBank
old assumptions simply break.
Keeping the leading 0: Internationally, the trunk-prefix 0 has to go (03 → +81 3)
Keeping the leading 0: Internationally, the trunk-prefix 0 has to go (03 → +81 3).
Swapping Tokyo and Osaka codes: Tokyo is 03, Osaka is 06
one transposed digit sends you to the wrong metropolis.
Mis-splitting the number: Groupings shift by line type (03-1234-5678 vs 090-1234-5678); the spacing is decorative, the digit count is law
Mis-splitting the number: Groupings shift by line type (03-1234-5678 vs 090-1234-5678); the spacing is decorative, the digit count is law.
Adjusting for a summer clock that doesn't exist: Japan never observes DST, so leave the offset at UTC+9 all year
Adjusting for a summer clock that doesn't exist: Japan never observes DST, so leave the offset at UTC+9 all year.
Tips to reduce the cost of calling Japan
Route over VoIP or a virtual number and sidestep premium per-minute international tariffs entirely.
Favor landlines when you can
termination to a Japanese mobile often carries a steeper rate.
Respect the 09:00–18:00 JST window so calls connect first time, sparing both sides the missed-call shuffle.
Hold a Japanese DID so your contacts dial you at a familiar local rate.
Why businesses get a Japan virtual number
Trust in Japan is earned in small, deliberate signals — and a domestic +81 line is one of the clearest. Customers and partners here reward the familiar over the foreign, and an unknown overseas number rarely makes it past the first ring.
Tỷ lệ trả lời cao hơn
A Tokyo or Osaka caller ID gets picked up where a strange foreign number is left to voicemail.
Giảm xung đột niềm tin
A Japanese number reads as a settled, reachable local presence.
Nhập cảnh rẻ hơn
Your customers reach you at ordinary domestic rates.
Định tuyến tập trung
Send every Japan call to whichever team should take it, wherever they sit.
Mở rộng nhanh hơn
Open the market without a physical office or a local carrier contract.
Sự hiện diện PSTN thực sự
A true geographic number on the network, not a forwarding relay.
Japan số ảo với My Country Mobile
Japanese customers expect the call to simply work — every time, with no static and no excuses. My Country Mobile delivers carrier-grade Japan numbers built to that standard of reliability and global reach.
DID cục bộ ở các mã vùng chính — được cung cấp trong vài phút
Chuyển tiếp cuộc gọi tới bất kỳ thiết bị di động, điện thoại cố định, điểm cuối SIP hoặc điện thoại mềm nào trên toàn thế giới
Giọng nói HD với G.711, G.729, Opus & AMR-WB — tự động đàm phán cho mỗi cuộc gọi
Độ trễ dưới 150ms trên các hành lang thoại chính thông qua PoP phân tán
SLA thời gian hoạt động 99,99% được hỗ trợ bởi cơ sở hạ tầng địa lý dự phòng và chuyển đổi dự phòng dưới 2 giây
Hỗ trợ WebRTC cho cuộc gọi dựa trên trình duyệt mà không cần cài đặt phần mềm điện thoại
API REST để cung cấp, định tuyến và ghi lại chi tiết cuộc gọi (CDR)
Tích hợp tính năng chống gian lận với tính năng phát hiện bất thường bằng AI & STIR/SHAKEN
Giám sát mạng 24/7 và hỗ trợ tận tình
How to get your Japan virtual number
Hầu hết các doanh nghiệp đều hoạt động trong vòng vài giờ chứ không phải vài ngày.
Choose your line — claim a Tokyo, Osaka or other local Japanese DID.
Clear verification — a quick KYC and compliance pass.
Point your routing — direct calls to SIP, mobile, app or call center.
Go live — be taking Japan calls within minutes.
Other country dialing guides
More country codes worth bookmarking.
Get a Japan virtual number with MCM
Claim a local Japan number, route every call wherever your team works, and meet Japanese customers with the trusted +81 presence they look for.
Japan +81 — FAQ
Why does Tokyo get a one-digit area code while smaller towns get four?expand_more
Japan assigned the shortest codes to its busiest hubs — Tokyo is 03, Osaka 06 — so size and seniority are baked right into the numbering.
Why can't I tell Docomo from SoftBank by the number anymore?expand_more
Japan adopted mobile number portability years ago, so 070, 080 and 090 now float freely between Docomo, au, SoftBank and Rakuten — the prefix has stopped being a clue.
What exactly is the 0 I keep being told to drop?expand_more
It's the domestic trunk prefix. Inside Japan you dial it; from abroad +81 takes its place, so 03 becomes +81 3.
How do I call Japan from the US?expand_more
Dial 011 + 81 + the number minus its leading 0 — for example 011 81 3 1234 5678.
How do I call Japan from the UK?expand_more
Dial 00 + 81 + the number with the leading 0 removed.
Do Japanese mobiles and landlines have different lengths?expand_more
Yes — counting the leading 0, landlines run 10 digits and mobiles run 11. Mobiles open with 070, 080 or 090.
Does Japan ever change its clocks for summer?expand_more
No. Japan has never run daylight saving, so JST holds at UTC+9 the whole year.
Can my business get a real Japanese number even without an office there?expand_more
Yes — MCM provisions genuine local Tokyo, Osaka and other Japan DIDs you can route to any team, anywhere.