Japan Phone Number Validation & Lookup API
Validate, normalize and classify Japanese phone numbers in one call: fixed-line / mobile / toll-free (0120) / navi-dial (0570) / IP (050), with E.164 + national + international formats, landline region and a best-effort mobile carrier. Handles full-width digits and +81. Fully offline (google libphonenumber) - no external calls.
Japan Phone Number Validation & Lookup API endpoints
| Method | Endpoint | Description |
|---|---|---|
| v1 | ||
| GET |
/v1/lookup /v1/lookup |
Return number metadata: type (mobile/fixed_line/toll_free/navi_dial/voip), the geographic region for landlines, and a best-effort carrier for mobiles (number-block based, not… |
| GET |
/v1/validate /v1/validate |
Check whether a Japanese phone number is valid and return its canonical formats (E.164, national, international, RFC3966) plus number type. |
| POST |
/v1/batch /v1/batch |
Validate up to 1000 numbers in one request - for cleansing a customer list / CSV import. |
Japan Phone Number Validation & Lookup API pricing
| Plan | Price | Rate limit | Quotas |
|---|---|---|---|
| BASIC | Free | — |
|
| PRO Recommended | $4.99 / month | — |
|
| ULTRA | $29.99 / month | — |
|