# Un-assign number

Un-assign a number from an application.

Endpoint: DELETE /v1/configuration/numbers
Version: 1.0.1
Security: Basic, Signed

## Request fields (application/json):

  - `number` (string)
    The phone number in E.164 format (https://community.sinch.com/t5/Glossary/E-164/ta-p/7537)
    Example: "+14151112223333"

  - `applicationkey` (string)
    Indicates the application where the number(s) was assigned. If empty, the application key that is used to sign the request will be used.
    Example: "11983f76-12c8-1111-9515-4785c7b67ca8"

  - `capability` (string)
    (optional) indicates the DID capability that was assigned to the chosen application. Please note that the DID needs to support the selected capability.
    Enum: "voice", "sms"


## Response 204 fields