---
title: "Detach phone number from an outbound agent"
method: DELETE
path: "/assistants/{model_id}/phone_numbers/{phone_number_slug}"
---

# Detach phone number from an outbound agent

`DELETE /assistants/{model_id}/phone_numbers/{phone_number_slug}`

Remove one attached outbound phone number from an agent.

## Path parameters

- `model_id` string, required — Agent ID. You can find it on the agent’s page in your dashboard.
- `phone_number_slug` string, required

## Headers

- `Authorization` string, required

## Response `200`

200

- DetachPhoneNumberFromAssistantResponse200
  - `status` string

## Other responses

- `400` — 400
- `404` — 404

## Changes

- **2026-08-22** `292b6010eb31` — 1 info
  - api tag `` removed

[Change history](https://skmtc.dev/synthflow/apis/platform-api/changes/assistants/:model_id/phone_numbers/:phone_number_slug/delete.md)

---

[API](https://skmtc.dev/synthflow/apis/platform-api.md) · [All operations](https://skmtc.dev/synthflow/apis/platform-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/synthflow/platform-api/revisions/a0a428a2afbe/schema)