Phone numbers · JP
Japan phone number format
Japan numbers use the country code +81. A mobile number looks like 090-1234-5678 at home and +819012345678 in international E.164 format.
| Type | Example (national) | International | E.164 | Digits |
|---|---|---|---|---|
| Mobile | 090-1234-5678 | +81 90-1234-5678 | +819012345678 | 10 |
| Landline | 03-1234-5678 | +81 3-1234-5678 | +81312345678 | 9 |
| Toll-free | 0120-123-456 | +81 120-123-456 | +81120123456 | 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 |
| VoIP | 050-1234-5678 | +81 50-1234-5678 | +815012345678 | 10 |
| Premium-rate | 0990-123-456 | +81 990-123-456 | +81990123456 | 9 |
| Personal (forwarding) number | 060-123-4567 | +81 60-123-4567 | +81601234567 | 9 |
| Company (UAN) number | 0570-123-456 | +81 570-123-456 | +81570123456 | 9 |
| Pager | 020-1234-5678 | +81 20-1234-5678 | +812012345678 | 10 |
- Country calling code
- +81
- National (trunk) prefix
- 0
- International call prefix
- 010
- Separate VoIP range
- Yes
- Time zones
- Asia/Tokyo
Validate in code
Check a Japan number.
Send the number as typed plus country: "JP". You get it back in E.164 with its line type, ready to store.
curl https://veqen-app.com/v1/phone/check \
-H "Authorization: Bearer $VEQEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{"country": "JP", "phone": "090-1234-5678"}'import os, requests
r = requests.post(
"https://veqen-app.com/v1/phone/check",
headers={"Authorization": f"Bearer {os.environ['VEQEN_API_KEY']}"},
json={"country": "JP", "phone": "090-1234-5678"},
timeout=10,
)
result = r.json()
print(result["risk"]["verdict"], result["risk"]["reasons"])const res = await fetch("https://veqen-app.com/v1/phone/check", {
method: "POST",
headers: {
Authorization: `Bearer ${process.env.VEQEN_API_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({"country": "JP", "phone": "090-1234-5678"}),
});
const result = await res.json();
console.log(result.risk.verdict, result.risk.reasons);Questions
Japan numbers
What is the country code for Japan?
+81. Dial it after your international access code, or use +81 from a mobile phone.
How do I format a Japan phone number in E.164?
Drop the national prefix (0) and add +81. For example 090-1234-5678 becomes +819012345678.
How many digits is a Japan mobile number?
10 digits after the country code.
Does Japan have VoIP phone numbers?
Yes, it has a dedicated VoIP range, and Veqen flags numbers in it.