How to Call Japan from US: Complete Guide 2026
Learn how to call Japan from USA with step-by-step dialing instructions, cheapest calling methods, and time zone tips. Save up to 95% on calls to Japan.
Need to call Japan from the US? Whether you are contacting a business partner in Tokyo, checking in with a friend studying in Osaka, or coordinating travel plans to Kyoto, this 2026 guide covers everything -- dialing formats, area codes for all major Japanese cities, mobile carrier prefixes, cultural calling etiquette, and the cheapest ways to make international calls to Japan.
Quick Reference: Calling Japan from US
Japan Country Code: +81
US Exit Code: 011 (or +)
Dialing Format: 011 + 81 + number
Time Difference: 13-17 hours ahead
Best Time to Call: 6-9 PM EST
Currency: Japanese Yen (JPY)
How to Dial Japan from the US
Step-by-Step Dialing Instructions
- 1
Dial the US exit code
Enter
011or press and hold+ - 2
Dial Japan's country code
Enter
81 - 3
Dial the area code (without leading 0)
Example: Tokyo is
3(not 03) - 4
Dial the local number
Enter the remaining digits
Example: Calling a Tokyo landline
011 + 81 + 3 + XXXX XXXXDialing Examples
Japan Area Codes
Japanese area codes vary in length from 1 to 4 digits (after dropping the leading 0). Major cities have shorter codes, while smaller towns have longer ones. Here are the area codes for the most commonly called cities:
| City | Area Code (Domestic) | From US |
|---|---|---|
| Tokyo | 03 | 011 81 3 |
| Osaka | 06 | 011 81 6 |
| Kyoto | 075 | 011 81 75 |
| Nagoya | 052 | 011 81 52 |
| Yokohama | 045 | 011 81 45 |
| Sapporo | 011 | 011 81 11 |
| Kobe | 078 | 011 81 78 |
| Fukuoka | 092 | 011 81 92 |
| Hiroshima | 082 | 011 81 82 |
| Sendai | 022 | 011 81 22 |
| Naha (Okinawa) | 098 | 011 81 98 |
| Kawasaki | 044 | 011 81 44 |
Japanese Mobile Carriers
Japan has three major mobile carriers. When calling a Japanese mobile phone from the US, you dial the mobile prefix (dropping the leading 0) after the country code. Here is how to identify which carrier a number belongs to:
NTT Docomo
Japan's largest carrier with approximately 37% market share.
- Mobile prefixes: 090-1XXX through 090-9XXX, 080-1XXX through 080-4XXX
- From US: 011 81 90 XXXX XXXX or 011 81 80 XXXX XXXX
au by KDDI
Japan's second-largest carrier with approximately 27% market share.
- Mobile prefixes: 090-XXXX, 080-5XXX through 080-8XXX
- From US: 011 81 90 XXXX XXXX or 011 81 80 XXXX XXXX
SoftBank
Japan's third-largest carrier with approximately 21% market share.
- Mobile prefixes: 090-XXXX, 080-9XXX, 070-XXXX
- From US: 011 81 90 XXXX XXXX, 011 81 80 XXXX XXXX, or 011 81 70 XXXX XXXX
Note: Japanese mobile numbers start with 070, 080, or 090 domestically. When dialing from the US, always drop the leading 0, so they become 011 81 70, 011 81 80, or 011 81 90.
Best Time to Call Japan from US
Japan is 13-17 hours ahead of the US depending on your time zone and daylight saving time. Japan does not observe DST, so the gap changes when the US shifts clocks.
From EST (New York): +14 hours (standard) / +13 hours (DST)
From CST (Chicago): +15 hours (standard) / +14 hours (DST)
From MST (Denver): +16 hours (standard) / +15 hours (DST)
From PST (LA): +17 hours (standard) / +16 hours (DST)
Tip: Call between 6-9 PM EST to reach Japan during morning business hours (8-11 AM JST). For evening social calls, try 5-7 AM EST to reach Japan between 7-9 PM.
Japan-Specific Calling Tips
Business Hours and Etiquette
Japanese business hours are typically 9 AM to 6 PM JST, Monday through Friday. When calling a business, be aware that many Japanese companies have a hierarchical phone etiquette -- identify yourself and your company clearly at the start of the call. It is considered polite to avoid calling during lunch (12-1 PM JST) or after 6 PM for business matters.
Golden Week and National Holidays
Japan's Golden Week (April 29 - May 5) is a major holiday period when many businesses close entirely. Other significant holidays include New Year (December 29 - January 3), Obon (mid-August), and Silver Week (late September). Avoid scheduling business calls during these periods, as offices will likely be closed and voicemail may not be monitored.
IP Phone Numbers (050)
Japan uses the 050 prefix for IP-based phone numbers (VoIP). These are commonly used by businesses for toll-free-like services and by individuals with internet phone plans. From the US, dial 011 81 50 XXXX XXXX. These numbers work the same way as regular landlines but are routed over the internet on the Japanese side.
Japanese Toll-Free Numbers
Japan's toll-free numbers start with 0120 or 0800. These are typically not accessible from outside Japan. If you need to reach a Japanese company's customer service, look for their regular landline number (area code + local number) on their website instead.
Cheapest Ways to Call Japan from US
BubblyPhone
VoIP calling with competitive rates to Japan landlines and mobiles. No connection fees, no monthly commitment.
Try Free →LINE
Free app-to-app calls. LINE is the dominant messaging app in Japan with over 90 million users. Essential for staying in touch with anyone in Japan.
Cost Comparison: Calling Japan from US
| Method | Rate to Japan | Notes |
|---|---|---|
| BubblyPhone | ~$0.03-0.08/min | Landlines cheaper, mobiles slightly higher |
| AT&T (standard) | $1.50-3.00/min | Without international plan add-on |
| T-Mobile | $0.25-2.00/min | Varies by plan; some plans include Japan |
| Verizon (standard) | $1.49-2.50/min | Without international plan add-on |
| LINE (app-to-app) | Free | Both parties need LINE installed |
Troubleshooting Common Issues
Forgetting to drop the leading 0
The most common mistake when calling Japan. Japanese numbers are written domestically with a leading 0 (e.g., 03-XXXX-XXXX for Tokyo). When dialing internationally, you must drop this 0 and use just 3. Dial 011 81 3 XXXX XXXX, not 011 81 03 XXXX XXXX.
Confusion with the +81 format
If someone gives you their number as +81-3-XXXX-XXXX, the +81 replaces both the exit code (011) and the country code. From a US mobile, dial exactly as written: +81 3 XXXX XXXX. From a US landline, replace the + with 011: 011 81 3 XXXX XXXX.
Cannot reach a 050 (IP phone) number
Some US carriers may have trouble routing calls to Japanese 050 numbers. If your call fails, try using a VoIP service like BubblyPhone instead, which typically has better routing to Japanese IP phone numbers.
Call goes to Japanese-language voicemail
If you hear a Japanese automated message, the person may be unavailable or their phone may be off. A common voicemail prompt says "denwa ni deru koto ga dekimasen" (cannot answer the phone). Try calling back later or send a message through LINE, which is far more commonly used in Japan than voicemail.