---
title: "Delete Phone Number"
method: DELETE
path: "/agents/phone-numbers/{id}"
tags: ["Phone Numbers"]
---

# Delete Phone Number

`DELETE /agents/phone-numbers/{id}`

## Path parameters

- `id` string, required

## Headers

- `Cartesia-Version` '2026-03-01', date, required

## Response `204`

Phone number deleted.

## Other responses

- `400` — Phone number is assigned to an agent. Unassign it first via PATCH, or provider cleanup failed.
- `404` — Phone number not found.

---

[API](https://skmtc.net/cartesia/apis/cartesia-api.md) · [All operations](https://skmtc.net/cartesia/apis/cartesia-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/cartesia/cartesia-api/revisions/8910812440d3/schema)