How to call Japan from Hong Kong
- From mobile
- +81 x xxxx xxxx
- From landline
- 00 81 x xxxx xxxx
From $0.07/min in your browser, no plan needed
How to dial Japan from Hong Kong
How to make a call to Japan from Hong Kong: dial the exit code, the country code, and the number. A Tokyo or Osaka number is a 9-digit number after 81: the area code, then 8 more digits.
- 00Hong Kong exit code
- 81Country code of Japan
- 3Tokyo
- xxxx xxxxLocal number
- From a mobile: +81 x xxxx xxxx
Paste or type a number here to see how to dial it from anywhere
Example: +81 3 1234 5678
- Mobile
- +81 3 1234 5678
- Landline
- 00 81 3 1234 5678
Main area codes in Japan
The area code comes right after 81, then the local number
- Tokyo00 813then 8 digits
- Yokohama00 8145then 7 digits
- Osaka00 816then 8 digits
- Nagoya00 8152then 7 digits
- Sapporo00 8111then 7 digits
- Fukuoka00 8192then 7 digits
- Kawasaki00 8144then 7 digits
- Kobe00 8178then 7 digits
Before you call Japan
Dial Kyoto, Hiroshima, or Sendai
Each of these cities takes 7 more digits after its code.
- Kyoto00 81 75
- Hiroshima00 81 82
- Sendai00 81 22
Calling Japan cell phones from a mobile
This is how to call Japan number on a cell phone: dial +81 from your mobile, then the number.
- Press and hold 0 for +
- Dial 81
- Dial the number
Drop the 0 before the area code
A Tokyo number saved as 03 does not connect after 81. Remove the 0.
- Fails
- 00 81 0 3 xxxx xxxx
- Works
- 00 81 3 xxxx xxxx
Calling Japan from Hong Kong without an international plan
Suparelay calls Japan for $0.07/min from your browser, with no plan. Without one, carriers in Hong Kong charge up to $1.50/min. csl lists Japan in no plan, and 3 Hong Kong covers landlines only with the IDD1966 Special Package.
| Carrier | Per minute |
|---|---|
SuparelayNo plan neededUp to 21× cheaper | $0.07 landline$0.09 mobile |
 | $1.00 + tax with access code 001 |
 | $1.50 with access code 001 |
Want to call Japan?
Type the number and call from your browser, with no app and no plan
When to call Japan
The time now in Japan, and the best hours to call. The time difference stays the same in every month.
- Time difference
- All year: 1 hour ahead of Hong Kong
- Daylight saving time
- None, the clocks never change
Why a call to Japan fails
3 needs IDD and Roaming Service for 001 calls
A 3 line without the IDD & Roaming Service subscription cannot use IDD 001. Switch the service on with 3 before you call abroad.
3 Hong Kong, IDD 001 Terms & Conditionscsl adds local airtime to every IDD call
csl IDD 001 calls also count local call minutes or incur local airtime charges.
csl, IDD 001 Voice Call Coverage and Charges3 treats a call back from call history as IDD 001
Dial through 1968 to use 3 IDD 1968 Service. A call to an overseas number from the call history menu uses the IDD 001 tariff instead.
3 Hong Kong, IDD 1968 Terms & Conditionscsl prepaid limits internet calls after the fair-use limit
On csl prepaid data services, internet calls (VoIP) can be disabled once you pass the fair-use limit. Check your prepaid product before you rely on a calling app.
csl, Prepaid Fair Usage PolicyFrom any country, a call to Japan also fails when
- The 0 is still in the number
- The exit code is wrong for your country
Questions
How to call Japan from Hong Kong cell phone or mobile?
Dial +81, then the number. It works from any mobile in Hong Kong
Are calls to Japan included in Hong Kong phone plans?
Not on most plans. No carrier in Hong Kong that we checked includes Japan in a plan
How much does it cost to call Japan from Hong Kong?
With no plan, carriers in Hong Kong charge up to $1.50 a minute. Suparelay charges each started minute, from your browser
How to call Tokyo from Hong Kong?
For Tokyo, dial 00 81 3, then the 8-digit local number
Do I need to dial 00 to call Japan?
From a landline, yes: dial 00, then 81. From a mobile, type + instead, and the phone adds the exit code
How do I dial a +81 number?
Press and hold 0 until + appears, then dial 81 and the number
Can I call Japan on my iPhone?
Yes. In the Phone app, press and hold 0 for +, then dial 81 and the number. Your plan must allow calls to Japan
Why isn't my call going through to Japan?
The usual causes: the 0 is still in the number and the exit code is wrong for your country. Each one is listed above, with a link to its fix
How to call Japan from Hong Kong for free?
An app calls for free only when both sides have it. A call to a landline, or to a phone without the app, costs money
How to call Japan from Hong Kong on WhatsApp?
WhatsApp and FaceTime call for free, but only someone with the same app. To ring a landline or a phone in Japan without the app, use your phone plan, a calling service, or Suparelay
How to call Japan landline from Hong Kong?
From a landline in Hong Kong, dial 00 81, then the number
Does csl include calls to Japan?
csl charges $1.00 a minute to a landline in Japan and $1.00 to a mobile
Does 3 Hong Kong include calls to Japan?
With the IDD1966 Special Package. Without it, 3 Hong Kong charges $1.50 a minute to a landline and $1.50 to a mobile
How to make an international call to Japan?
Dial 00 81, then the number. From a mobile, +81 works too
When is the best time to call Japan?
Call between 8:00 and 22:00 in Japan. All year: 1 hour ahead of Hong Kong