> For a complete index of all SignalWire documentation pages, fetch https://signalwire.com/docs/llms.txt

# delete

> Release a phone number from the project.

Release (delete) a phone number from the project.

### Schema

```yaml
openapi: 3.1.0
info:
  title: API
  version: 1.0.0
paths:
  /api/relay/rest/phone_numbers/{id}:
    delete:
      operationId: release_phone_number
      summary: Release phone number
      description: >-
        Releases a phone number.


        #### Permissions


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


        [Learn more about API scopes](/docs/platform/your-signalwire-api-space).
      tags:
        - subpackage_phoneNumbers
      parameters:
        - name: id
          in: path
          description: Unique ID of the phone number.
          required: true
          schema:
            $ref: '#/components/schemas/uuid'
      responses:
        '204':
          description: >-
            There is no content to send for this request, but the headers may be
            useful. 
          content:
            application/json:
              schema:
                type: object
                properties: {}
        '401':
          description: Access is unauthorized.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Types.StatusCodes.StatusCode401'
        '404':
          description: The server cannot find the requested resource.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Types.StatusCodes.StatusCode404'
        '422':
          description: The request failed validation. See errors for details.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Types.StatusCodes.ValidationError'
        '500':
          description: An internal server error occurred.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Types.StatusCodes.StatusCode500'
servers:
  - url: https://%7BYour_Space_Name%7D.signalwire.com
    description: SignalWire API
components:
  schemas:
    uuid:
      type: string
      format: uuid
      description: Universal Unique Identifier.
      title: uuid
    TypesStatusCodesStatusCode401Error:
      type: string
      enum:
        - Unauthorized
      title: TypesStatusCodesStatusCode401Error
    Types.StatusCodes.StatusCode401:
      type: object
      properties:
        error:
          $ref: '#/components/schemas/TypesStatusCodesStatusCode401Error'
      required:
        - error
      description: Access is unauthorized.
      title: Types.StatusCodes.StatusCode401
    TypesStatusCodesStatusCode404Error:
      type: string
      enum:
        - Not Found
      title: TypesStatusCodesStatusCode404Error
    Types.StatusCodes.StatusCode404:
      type: object
      properties:
        error:
          $ref: '#/components/schemas/TypesStatusCodesStatusCode404Error'
      required:
        - error
      description: The server cannot find the requested resource.
      title: Types.StatusCodes.StatusCode404
    Types.StatusCodes.SpaceApiErrorItem:
      type: object
      properties:
        detail:
          type: string
          description: A description of what caused the error.
        status:
          type: string
          description: The HTTP status code.
        title:
          type: string
          description: A short summary of the error type.
        code:
          type: string
          description: The error code.
      required:
        - detail
        - status
        - title
        - code
      description: Details about a specific validation error.
      title: Types.StatusCodes.SpaceApiErrorItem
    Types.StatusCodes.ValidationError:
      type: object
      properties:
        errors:
          type: array
          items:
            $ref: '#/components/schemas/Types.StatusCodes.SpaceApiErrorItem'
          description: List of validation errors.
      required:
        - errors
      description: The request failed validation. See errors for details.
      title: Types.StatusCodes.ValidationError
    TypesStatusCodesStatusCode500Error:
      type: string
      enum:
        - Internal Server Error
      title: TypesStatusCodesStatusCode500Error
    Types.StatusCodes.StatusCode500:
      type: object
      properties:
        error:
          $ref: '#/components/schemas/TypesStatusCodesStatusCode500Error'
      required:
        - error
      description: An internal server error occurred.
      title: Types.StatusCodes.StatusCode500

```

## **Example**

```python {9}
from signalwire.rest import RestClient

client = RestClient(
    project="your-project-id",
    token="your-api-token",
    host="your-space.signalwire.com",
)

client.phone_numbers.delete("phone-number-id")
```