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> For a complete documentation index, see https://docs.getdial.ai/llms.txt.
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# Register a phone number

POST https://api.getdial.ai/api/v1/auth/register-number
Content-Type: application/json

Sends a one-time code by SMS to the phone number that will own the new
account. Call this with the `registrationId` returned by
[Verify a sign-up code](#operation/verifySignup).

The number must be a valid phone number in E.164 form, and it must not
already be registered to another account — **a verified number is bound to
one account permanently.** A Dial number cannot be used to register a Dial
account.

Calling this again with the same number re-sends the code. Calling it with
a different number replaces the pending one, so a mistyped number is
recoverable until it is verified.


Reference: https://docs.getdial.ai/api-reference/rest-api/authentication/register-number

## Request

### Body (application/json)

- `registrationId` (string, required) — From the verify-sign-up response.
- `phoneNumber` (string, required) — The owner's phone number, E.164 preferred.

## Response

### 200

Code sent.

- `registrationId` (string, optional)
- `phoneNumber` (string, optional) — The number in canonical E.164 form.
- `status` (enum, optional)
  - Allowed values: `pending`

## Examples

**Request**

```json
{
  "registrationId": "string",
  "phoneNumber": "+14155550123"
}
```

**Response**

```json
{
  "registrationId": "string",
  "phoneNumber": "+14155550123",
  "status": "pending"
}
```

**SDK Code**

```python
import requests

url = "https://api.getdial.ai/api/v1/auth/register-number"

payload = {
    "registrationId": "string",
    "phoneNumber": "+14155550123"
}
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.getdial.ai/api/v1/auth/register-number';
const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: '{"registrationId":"string","phoneNumber":"+14155550123"}'
};

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"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.getdial.ai/api/v1/auth/register-number"

	payload := strings.NewReader("{\n  \"registrationId\": \"string\",\n  \"phoneNumber\": \"+14155550123\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "application/json")

	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://api.getdial.ai/api/v1/auth/register-number")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"registrationId\": \"string\",\n  \"phoneNumber\": \"+14155550123\"\n}"

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.post("https://api.getdial.ai/api/v1/auth/register-number")
  .header("Content-Type", "application/json")
  .body("{\n  \"registrationId\": \"string\",\n  \"phoneNumber\": \"+14155550123\"\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.getdial.ai/api/v1/auth/register-number', [
  'body' => '{
  "registrationId": "string",
  "phoneNumber": "+14155550123"
}',
  'headers' => [
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.getdial.ai/api/v1/auth/register-number");
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"registrationId\": \"string\",\n  \"phoneNumber\": \"+14155550123\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Content-Type": "application/json"]
let parameters = [
  "registrationId": "string",
  "phoneNumber": "+14155550123"
] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.getdial.ai/api/v1/auth/register-number")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

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()
```