How to Call Japan from the US: A Guide for SMBs and Startups

Let’s say you’re onboarding a new supplier in Osaka or checking in with a remote developer in Tokyo. You’re ready to make that call — but what’s the right way to dial a Japanese phone number from the US? 

Whether you’re managing global projects or supporting international clients, calling Japan doesn’t have to be complicated or expensive. This guide walks you through the correct dialing format, estimated costs, and smarter calling tools for small businesses and startups. 

What’s the Japan Country Code? 

Japan’s country code is +81. When calling from the US, dial 81 right after the international exit code (011). This tells the phone network to route your call to Japan. 

For startups and SMBs working with Japanese vendors, partners, or remote teams, knowing how to use country codes correctly is essential. A smooth calling experience starts with the right setup, especially when relationships and response time matter. 

How to Call Japan from the US, Step by Step 

To call a landline or a mobile phone in Japan, you have to use the same structure. Just remember to skip the leading 0 in the local number. 

For Japanese Landlines: 

1. Dial 011 — US exit code. 
2. Dial 81 — Japan’s country code. 
3. Dial the area code — Without the leading 0 (e.g., Tokyo’s 03 becomes 3). 
4. Dial the local number. 

Example: To call a Tokyo number like 03-1234-5678, dial: 011-81-3-1234-5678. 

For Japanese Mobile Phones: 

1. Dial 011 — US exit code 
2. Dial 81 — Japan’s country code 
3. Dial the mobile number — Skip the first 0 (e.g., 090 becomes 90) 
4. Dial the remaining digits 

Example: To call a mobile number like 090-1234-5678, dial: 011-81-90-1234-5678. 

Pro Tip 

Using a mobile device? You can replace 011 with a “+”. Just long-press 0 on your dial pad. Example: +81-90-1234-5678. 

 Common Japanese Area Codes 

Here are some of the most frequently used area codes in Japan: 

These area codes are used for landlines only. If you're calling a mobile phone, you’ll use mobile prefixes like 070, 080, or 090, and still skip the leading 0 when dialing from the US. 

When Should SMBs Make International Calls? 

Startups and small businesses often call Japan for key reasons like: 

• Managing relationships with suppliers or partners in Asia 
• Coordinating with offshore development or operations teams 
• Handling customer service for Japanese clients 
• Exploring international expansion or market research 

Time zone tip: Japan is typically 13–16 hours ahead of US time zones. Schedule meetings accordingly to avoid missed connections. 

How Much Does It Cost to Call Japan? 

Calling Japan from the US can vary in cost. With traditional carriers, rates range from $0.20 to $0.50 per minute.  

Cloud phone systems like DialLink offer more competitive pricing with no hidden fees and transparent per-minute international rates. Check our international calling rates for up-to-date details. 

Make International Calls the Easy Way with DialLink 

DialLink is an AI-powered cloud phone system designed for growing teams. Whether you're connecting with clients in Tokyo or coordinating with partners in Takamatsu, DialLink helps your business stay professional, responsive, and on budget, no matter where you're calling. 

Here are why SMBs and startups choose DialLink: 

• Mobile, desktop and desk phone support – Make calls from anywhere, using any device. 
• 24/7 AI voice agents – Automatically answer calls from the Philippines, even after hours. 
• Local & international numbers – Build a global presence with ease. 
• Plug-and-play setup – No IT help required. 
• Affordable, transparent rates – No hidden fees.