> ## Documentation Index
> Fetch the complete documentation index at: https://docs.goliathdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Phone

> A single phone number with its line type and confidence ranking.

Used in: [SkipTrace](/skip-trace), [SkipTraceResult](/skiptrace-result)

## Fields

| Field     | Type   | Description                               |
| --------- | ------ | ----------------------------------------- |
| `number`  | string | Phone number (digits only, no formatting) |
| `type`    | string | `Mobile`, `Residential`, or `VOIP`        |
| `ranking` | number | Confidence ranking — lower is better      |

## Example

```json theme={null}
{ "number": "5550000001", "type": "Mobile", "ranking": 1 }
```

## Notes

<Note>
  `number` is returned as a plain digit string with no formatting. Format it before displaying or passing to a dialer:

  ```js theme={null}
  const formatted = number.replace(/(\d{3})(\d{3})(\d{4})/, '($1) $2-$3');
  // "5550000001" → "(555) 000-0001"
  ```
</Note>

<Note>
  Lower `ranking` = higher confidence. Always try `ranking: 1` first. Mobile numbers generally have higher deliverability for SMS campaigns.
</Note>