Japan business phone numbers: 03, 06, 050 and 0120 explained
Selling in Japan? See how 03, 06 and other area codes, 050 IP numbers and 0120 free numbers work, and which suits your business.
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Japanese customers pay close attention to the number a company calls from. A familiar area code builds trust, and an unknown number can go unanswered. Here is how the main types work.
| Prefix | Meaning |
|---|---|
| 03 | Tokyo |
| 06 | Osaka |
| 052 | Nagoya |
| 050 | IP telephony numbers, not tied to a place |
| 070, 080, 090 | Mobile numbers |
| 0120 and 0800 | Toll-free numbers, free for callers |
Local numbers
A Tokyo 03 number or an Osaka 06 number shows customers you are a local, established business. It matters most when you are selling to companies or to the general public in that city.
050 numbers
050 numbers are used for internet-based phone services. They work anywhere but do not carry a city identity.
Mobile numbers
Mobile numbers suit personal outreach and field staff.
Toll-free numbers
0120 and 0800 numbers are free for callers and are widely used for support and sales lines.
Tips for calling in Japan
- Call during local business hours and respect lunch breaks.
- Introduce your company clearly and politely at the start.
- Follow Japanese rules on unsolicited sales calls and keep a record of calls.
- Use a script that your team has checked with a native speaker.
Dialsyx offers Japan local and mobile numbers at $65 per user per month, taxes included. See Japan numbers and read call script templates to prepare your team.
This is general information. Check the rules that apply to your business in Japan.
Which number for which business?
| Business | Good choice | Why |
|---|---|---|
| Company selling in Tokyo | 03 local number | Shows local presence |
| Osaka services | 06 local number | Familiar to local customers |
| Web-based service | 050 number | Works anywhere, no city tie |
| Customer support | 0120 toll-free number | Free for callers |
Etiquette tips
- Start calls with a polite greeting and your company name.
- Avoid calling during lunch hours.
- Keep call scripts short, clear and checked by a native speaker.
- Confirm details back to the customer at the end of the call.
Time zones
Japan is nine hours ahead of UTC. Teams in the USA and Europe need to plan calling windows carefully, since your morning may be their evening. Block the right hours on the calendar and keep a clear record of every call.
Frequently asked questions
Do customers prefer Tokyo numbers?
For many businesses a Tokyo 03 number builds trust, but the best number depends on your customers.
What is a 050 number?
An IP telephony number that is not tied to a city.
Can I get a toll-free 0120 number with Dialsyx?
Our Japan plan covers local and mobile numbers. Ask us about other types.
Can a non-Japanese company get a Japan number?
Availability depends on the provider and country rules. Ask before you plan.
We build business calling for teams in the USA, Canada, the UK, Australia and Japan, with a browser phone and a built-in CRM. About Dialsyx
