> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes.

# List verified caller IDs

GET https://%7BYour_Space_Name%7D.signalwire.com/api/relay/rest/verified_caller_ids

Lists external phone numbers your SignalWire project has submitted for outbound caller-ID verification. Verified Caller IDs let calls present a number the project does not own; project-owned numbers are managed through [Phone Numbers](/docs/apis/rest/phone-numbers/list-phone-numbers) and do not need this verification flow. Results are sorted by creation date, most recent first.

#### Permissions

The API token used to authenticate must have the following scope(s) enabled to make a successful request: _Voice_.

[Learn more about API scopes](/docs/platform/your-signalwire-api-space).

Reference: https://signalwire.com/docs/apis/rest/verified-caller-id/list-verified-caller-ids

## Authentication

- `Authorization` header (basic auth, required) — SignalWire Basic Authentication using Project ID and API Token. The client sends HTTP requests with the Authorization header containing the word Basic followed by a space and a base64-encoded string of project_id:token. The project ID will be used as the username and the API token as the password. Example: ``` Authorization: Basic base64(project_id:token) ```

## Request

### Query parameters

- `filter_name` (string, optional) — String representing the name assigned to the caller ID. Will return all Verified Caller IDs containing this value as a substring.
- `filter_number` (string, optional) — String representing the number assigned to the caller ID. Will return all Verified Caller IDs containing this value as a substring.

## Response

### 200

The request has succeeded.

- `links` (PaginationLinks, optional) — Pagination links.
- `data` (list of VerifiedCallerID, optional) — List of verified caller IDs.

## Errors

### 401 Unauthorized Error

Access is unauthorized.

- `error` (enum, required)
  - Allowed values: `Unauthorized`

### 500 Internal Server Error

An internal server error occurred.

- `error` (enum, required)
  - Allowed values: `Internal Server Error`

## Types

### PaginationLinks

Pagination links for list responses.

- `self` (string, required) — Link to the current page.
- `first` (string, required) — Link to the first page.
- `next` (string, optional) — Link to the next page. Only present when there are more results.
- `prev` (string, optional) — Link to the previous page. Only present when not on the first page.

### VerifiedCallerID

Verified caller ID model.

- `id` (string, required) — The unique identifier of the Verified Caller ID on SignalWire.
- `number` (string, required) — String representing the phone number for the caller ID. This must be a valid, routeable phone number in E.164 format.
- `verified` (boolean, required) — A boolean representing whether the number has been verified or not.
- `type` (string, optional) — The type of the returned object, this should be verified_caller_id.
- `name` (string, optional) — String representing the name portion of the caller ID. If not provided, the default will be the formatted number that has been provided.
- `extension` (string, optional) — String representing the extension of the phone number for the caller ID. This is only used when placing the verification call.
- `verified_at` (datetime, optional) — Nullable DateTime field representing the date and time that the number was verified. If the number has not been verified, it will be null.
- `status` (enum, optional) — The verification status for the caller ID.
  - Allowed values: `Verified`, `Awaiting Verification`

## Examples

**Response**

```json
{
  "links": {
    "self": "string",
    "first": "string",
    "next": "string",
    "prev": "string"
  },
  "data": [
    {
      "id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
      "number": "+15551234567",
      "verified": false,
      "type": "verified_caller_id",
      "name": "C-3P0",
      "extension": "1234",
      "verified_at": "2024-01-15T09:30:00Z",
      "status": "Awaiting Verification"
    }
  ]
}
```

**SDK Code**

```python
import requests

url = "https://{your_space_name}.signalwire.com/api/relay/rest/verified_caller_ids"

response = requests.get(url, auth=("<project_id>", "<api_token>"))

print(response.json())
```

```javascript
const url = 'https://{your_space_name}.signalwire.com/api/relay/rest/verified_caller_ids';
const credentials = btoa("<project_id>:<api_token>");

const options = {method: 'GET', headers: {Authorization: `Basic ${credentials}`}};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://{your_space_name}.signalwire.com/api/relay/rest/verified_caller_ids"

	req, _ := http.NewRequest("GET", url, nil)

	req.SetBasicAuth("<project_id>", "<api_token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://{your_space_name}.signalwire.com/api/relay/rest/verified_caller_ids")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request.basic_auth("<project_id>", "<api_token>")

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.get("https://{your_space_name}.signalwire.com/api/relay/rest/verified_caller_ids")
  .basicAuth("<project_id>", "<api_token>")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://{your_space_name}.signalwire.com/api/relay/rest/verified_caller_ids', [
  'headers' => [
  ],
    'auth' => ['<project_id>', '<api_token>'],
]);

echo $response->getBody();
```

```csharp
using RestSharp;
using RestSharp.Authenticators;

var client = new RestClient("https://{your_space_name}.signalwire.com/api/relay/rest/verified_caller_ids");
client.Authenticator = new HttpBasicAuthenticator("<project_id>", "<api_token>");
var request = new RestRequest(Method.GET);

IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let credentials = Data("<project_id>:<api_token>".utf8).base64EncodedString()

let headers = ["Authorization": "Basic \(credentials)"]

let request = NSMutableURLRequest(url: NSURL(string: "https://{your_space_name}.signalwire.com/api/relay/rest/verified_caller_ids")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```