> ## Documentation Index
> Fetch the complete documentation index at: https://developers.telnyx.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Hosted number order event

> Webhook fired when a messaging hosted number order is created, updated, deleted, or progresses through the internal-transfer lifecycle (detected, approval requested, approved, rejected, auto-approved). Inspect `event_type` to distinguish events.

This webhook uses Telnyx headers (telnyx-timestamp, telnyx-signature-ed25519) that are compatible with Standard Webhooks specification for SDK generation. Custom validation logic can map these to standard webhook-timestamp and webhook-signature equivalents. See https://github.com/standard-webhooks/standard-webhooks for details.



## OpenAPI

````yaml /openapi/source/external/messaging/messaging.json webhook hostedNumberOrderEvent
openapi: 3.1.0
info:
  x-latency-category: responsive
  x-endpoint-cost: light
  version: 2.0.0
  title: Telnyx API
  description: SIP trunking, SMS, MMS, Call Control and Telephony Data Services.
  contact:
    email: support@telnyx.com
servers:
  - url: https://api.telnyx.com/v2
    description: Version 2.0.0 of the Telnyx API
security:
  - bearerAuth: []
tags:
  - name: Profiles
    description: Messaging profiles
  - name: Messages
    description: Messages
  - name: Messaging URL Domains
    description: Messaging URL Domains
  - name: Short Codes
    description: Short codes
  - name: Number Settings
    description: Configure your phone numbers
  - name: Hosted Numbers
    description: Manage your messaging hosted numbers
  - name: Opt-Out Management
    description: Opt-Out Management
  - name: RCS
    description: Send RCS messages
  - name: Whatsapp messaging
    description: Send Whatsapp messages
  - name: Whatsapp Business Accounts
    description: Manage Whatsapp business accounts
  - name: Whatsapp Phone Numbers
    description: Manage Whatsapp phone numbers
  - name: Whatsapp Message Templates
    description: Manage Whatsapp message templates
  - name: Callbacks
    description: Callbacks
paths: {}
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer

````