---
title: "Un-assign number"
method: DELETE
path: "/v1/configuration/numbers"
tags: ["Applications"]
---

# Un-assign number

`DELETE /v1/configuration/numbers`

Un-assign a number from an application.

## Request body

- UnassignNumbers
  - `number` string — The phone number in E.164 format (https://community.sinch.com/t5/Glossary/E-164/ta-p/7537)
  - `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.
  - `capability` 'voice' | 'sms' — Valid values are `voice` and `sms`

## Response `204`

A success response, or an [Error](https://developers.sinch.com/docs/voice/api-reference/errors/).

---

[API](https://skmtc.net/sinch/apis/voice-api-sinch.md) · [All operations](https://skmtc.net/sinch/apis/voice-api-sinch/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/sinch/voice-api-sinch/revisions/a59ac1ee7b2c/schema)