# `PHONE_NOT_SUPPORTED` Only Thai mobile numbers

Source: https://checkslip.com/en/problems/phone-not-supported

- **HTTP status**: `422`
- **Credit**: No credit taken

## Meaning

Only Thai mobile numbers starting 06, 08 or 09 (+66 followed by 9 digits) can be verified.

## Fix

Enter a 10-digit Thai mobile number, e.g. 0812345678.

## Example response

```
{
  "type": "https://checkslip.com/problems/phone-not-supported",
  "title": "Only Thai mobile numbers",
  "status": 422,
  "code": "PHONE_NOT_SUPPORTED",
  "instance": "019a2f3e-7b1c-7d4e-9f00-0a1b2c3d4e5f"
}
```