---
title: "Register an org phone number"
method: POST
path: "/v1/communication/phone-numbers"
tags: ["communication"]
---

# Register an org phone number

`POST /v1/communication/phone-numbers`

## Request body

- PhoneNumberCreate
  - `phone_e164` string, required
  - `vendor` 'twilio', required
  - `vendor_mode` 'platform' | 'byo', required
  - `capabilities` PhoneCapability[]
  - `vendor_metadata` object
  - `integration_connection_id` string, uuid, nullable — BYOT only. Pin the new Sender to a specific connected Twilio integration. Required when the org has more than one connected Twilio integration; when omitted, the service auto-discovers the org's single connected integration and 422s on ambiguity.

## Response `201`

Successful Response

- PhoneNumberResponse
  - `id` string, uuid, required
  - `organization_id` string, uuid, required
  - `phone_e164` string, required
  - `vendor` 'twilio', required
  - `vendor_mode` 'platform' | 'byo', required
  - `capabilities` PhoneCapability[], required
  - `vendor_metadata` object, required
  - `status` 'active' | 'paused' | 'retired', required
  - `created_at` string, date-time, required
  - `updated_at` string, date-time, required

## Other responses

- `400` — Bad request
- `401` — Authentication required
- `422` — Validation Error

---

[API](https://skmtc.net/oneloop-hq/apis/feather-api.md) · [All operations](https://skmtc.net/oneloop-hq/apis/feather-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/oneloop-hq/feather-api/versions/888bdd5c076e/schema)