# Find which phone numbers are on the do-not-call list

`POST https://www.getrevox.com/api/calls/screen-do-not-call`

Returns the subset of the submitted numbers that must not be called. Unlike /calls/phone-history — which only knows numbers the organization has already called — this screens arbitrary numbers, so a contact being imported for the first time can be caught before the campaign is created.

## Request body (JSON)

- `phone_numbers` (array of string, required)

## Example request

```bash
curl -X POST https://www.getrevox.com/api/calls/screen-do-not-call \
  -H "Authorization: Bearer $REVOX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "phone_numbers": [
      "+33612345678"
    ]
  }'
```

## Responses

### 200: Success

- `blocked` (array of string, required)