---
title: "Release phone number"
method: DELETE
path: "/v1/phone-numbers/{phoneNumberId}"
---

# Release phone number

`DELETE /v1/phone-numbers/{phoneNumberId}`

Release a phone number. The phone number must not be assigned to a sender.

## Path parameters

- `phoneNumberId` string, required

## Response `204`

Phone number released.

## Other responses

- `400` — Cannot release phone number assigned to a sender.
- `401` — Unauthorized.
- `404` — Phone number not found.

---

[API](https://skmtc.net/zavudev/apis/zavu-unified-messaging-layer-api.md) · [All operations](https://skmtc.net/zavudev/apis/zavu-unified-messaging-layer-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/zavudev/zavu-unified-messaging-layer-api/revisions/4dacdff2adf8/schema)