What is the country code for Japan?

Japan's country code is 81. Always dial 81 after the international access code (001 from Indonesia) when calling Japan.

Do I need to drop the leading zero from area codes?

Yes. When calling internationally from Indonesia, always omit the leading zero from Japanese area codes. For example, use 81 3 for Tokyo, not 81 03.

What is the cost per minute to call Japan from Indonesia on Sayfone?

Sayfone offers calls to Japan at 36¢ per minute. Rates are transparent and displayed before you call, so there are no surprises.

What time zone is Japan in?

Japan is in Japan Standard Time (UTC+9) year-round and does not observe daylight saving time. Indonesia spans multiple time zones; Jakarta is UTC+7, making Japan 2 hours ahead.

Can I call Japanese mobile numbers internationally?

Yes. Japanese mobile numbers begin with 070, 080, or 090. Dial them the same way as landlines: 001 81 90 (or 080/070) XXXX XXXX. Drop the leading zero before the mobile prefix when dialing internationally.

What if my call fails to connect?

Check your internet or cellular connection and confirm the number is correct, including the country code (81) and area code without the leading zero. Try redialing after a few seconds; transient network issues are common. If the problem persists, verify the number through an official source.

Do I need any special setup or account to call Japan from Indonesia?

Using Sayfone requires a browser and an internet connection. No app download or long sign-up process is needed. Simply enter the number, review the rate, and call.

Are there any numbers in Japan I cannot call?

Most standard landlines and mobile numbers can be called. Some special numbers (such as premium lines or very short codes) may not be reachable from outside Japan. If a call fails, verify the number and try again.

Quick Answer

How to Call Japan from Indonesia

To call Japan from Indonesia, dial the international access code (001), Japan's country code (81), and the local phone number. The process takes seconds, and Sayfone provides transparent per-minute pricing.

Start Calling Now

Cost tools

🇮🇩From Indonesia

To Japan🇯🇵

$0.36

Per minute

Country code

Call quality

Landline rate

$0.36/min

Mobile rate

$0.36/min

Same per-minute Sayfone rate for landline and mobile.

Average call quality

Steps at a glance

Dial 001 (Indonesia's international access code)
Enter 81 (Japan's country code)
Enter the area code and local number
Press call and connect

Sources

1
ITU International Telecommunication Union
Country code verification

DIALING GUIDE

Step-by-Step Dialing Instructions

Follow these precise steps to dial a number in Japan from Indonesia. Each step is simple and takes just seconds.

1
Dial the international access code
Dial 001 from any Indonesian phone (landline or mobile). This tells your carrier you are making an international call.
```
001
```
2
Enter Japan's country code
After hearing the dial tone, enter 81, which is Japan's country code assigned by the International Telecommunication Union.
```
001 81
```
3
Enter the area code
Dial the area code for the city or region in Japan you're calling. Japanese area codes range from 1 to 4 digits and appear after the country code. Drop any leading zero from the area code if dialing internationally.
```
001 81 3 (for Tokyo)
```
4
Enter the local number
Dial the remaining local phone number. Japanese landline numbers typically have 7–10 digits; mobile numbers vary. Complete the full sequence without pauses.
```
001 81 3 XXXX XXXX
```
Press call
Press the call button or green dial button on your phone. Your call will connect within seconds.

Dialing format reference

Use these patterns when entering a full international number to 81.

Mobile

90–099 followed by 7–8 digits

Landline

Area code (1–4 digits) + 7–10 digit local number

81 3 1234 5678 (Tokyo landline)
81 90 1234 5678 (Tokyo mobile)
81 6 1234 5678 (Osaka landline)

Major city area codes

Tokyo3

Osaka6

Kyoto75

Yokohama45

Fukuoka92

Sources

1
Indonesian Telecommunications Regulatory Authority (BRTI)
Access codes and dialing rules
2
Ministry of Internal Affairs and Communications (MIC) - Japan
Japanese numbering plan and area codes

IMPORTANT RULES

Dialing Rules and Number Formats

Understanding Japan's numbering plan ensures your calls connect reliably. Follow these rules for landlines, mobile numbers, and special cases.

Drop the leading zero from area codes

When dialing internationally, always omit the leading zero from Japanese area codes. Domestic calls within Japan require the zero; international calls do not. For example, dial 81 3 (not 81 03) for Tokyo.

Mobile numbers start with 070, 080, or 090

Japanese mobile numbers consistently begin with 070, 080, or 090. When calling from Indonesia, dial 001 81 followed by the mobile number without the leading zero (e.g., 001 81 90 1234 5678).

Use 001 for international access from Indonesia

Indonesia's international direct dial (IDD) code is 001. This must be dialed before any country code. Some carriers may also accept 007 or 008; 001 is most widely supported.

No special prefixes needed for standard calls

Unlike some countries, Japan does not require dialing special prefixes for landlines versus mobile numbers. Once you complete the full number, your call will route automatically.

CALLING TIPS

Best Times to Call and Practical Tips

Time-zone differences and local customs matter when calling Japan. Use these tips to reach contacts when they're available and approach calls professionally.

Time & windows

Japan Standard Time

UTC+9 (year-round)

Japan does not observe daylight saving time.

Indonesia (various zones)

UTC+7 to UTC+9

Indonesia spans three time zones; Jakarta is UTC+7.

🇮🇩Best time to reach Tokyo offices

9:00 AM–6:00 PM Japan time (7:00 AM–4:00 PM Jakarta time)Standard business hours; consider lunch breaks 12:00–1:00 PM.

🇮🇩Early morning Japan (best for reaching offices before noon)

7:00 AM–10:00 AM Japan time (5:00 AM–8:00 AM Jakarta time)Quieter, good for important calls.

🇮🇩Avoid calling

10:00 PM–7:00 AM Japan time (8:00 PM–5:00 AM Jakarta time)Outside business hours; early morning calls may be unwelcome.

Calling tips

Speak clearly and slowly, especially for international calls; allow brief pauses between sentences.
Confirm the person's name and department at the start of the call to ensure you've reached the right contact.
Keep your call concise; respect Japanese business culture by preparing key points beforehand.
If calling a business, try to reach the intended person directly rather than asking for transfers.

Business etiquette

Introduce yourself fully, including your company, before launching into your purpose.
Be aware that first calls to new contacts in Japan may be more formal; keep the tone professional.
If you reach voicemail, leave a clear message with your name, company, reason for calling, and callback number.
Follow up with an email after your call to confirm any agreements or next steps.

Sources

1
World Time Zone Database
Time-zone and daylight saving time verification

TROUBLESHOOTING

Common Issues and Solutions

International calls sometimes encounter connection issues or failures. Here are practical solutions to common problems when calling Japan from Indonesia.

Call fails to connect or drops mid-call

Ensure you have a stable internet or cellular connection. If using a mobile network, you may have better luck with WiFi calling. Try redial after a few seconds; transient network issues are common on international routes. Check that you entered the full number correctly, including the country code and area code without the leading zero.

You hear a busy tone or routing error

Double-check the area code and local number for accuracy. If calling a Tokyo number, confirm the area code is 03 (entered as 3 internationally). Verify the number was entered without any accidental spaces or dashes. Some business extensions may not be reachable from outside Japan; try calling the main line first.

Poor audio quality or echo

Audio quality depends on network conditions. Try switching from cellular to WiFi or vice versa. Ask the person on the other end if they can hear you clearly; sometimes the issue is one-way. End the call and try again after a moment; network congestion may have improved.

Unable to reach a specific number

Verify the phone number through a directory or official source before assuming the call failed. Some numbers may be unlisted or restricted from international calling. If calling a business, try the main reception line rather than a direct extension. Always confirm the number is formatted correctly (including country code 81 and area code without leading zero).

Savings

See what you could save

Adjust the tools below to compare Sayfone with typical retail pricing for calls to Japan. Start with one call, then layer on monthly volume to see the bigger picture.

How to use these tools

Sayfone uses your live rate for calls to Japan — the same basis as the rest of this page.
First, estimate savings on a single call length. Then, model a full month of minutes versus typical retail benchmarks.
Retail competitor rows are illustrative — not a quote from any carrier.