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

# Reserve a number

> Reserve a phone number for your account. Once reserved, it can be used for calling and texting.

Use [List available numbers](/api-reference/numbers/list-available-numbers) to find a number first.



## OpenAPI

````yaml POST /numbers/reserve
openapi: 3.1.0
info:
  title: Poku API
  version: 1.0.0
  description: OpenAPI document for the authenticated Poku API routes.
servers:
  - url: https://api.pokulabs.com
security:
  - bearerAuth: []
tags:
  - name: calls
  - name: messages
  - name: forms
  - name: interactions
  - name: numbers
  - name: webhooks
paths:
  /numbers/reserve:
    post:
      tags:
        - numbers
      summary: Reserve a number
      description: >-
        Reserve a phone number for your account. Once reserved, it can be used
        for calling and texting.


        Use [List available
        numbers](/api-reference/numbers/list-available-numbers) to find a number
        first.
      operationId: reserveNumberAlias
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ReservePhoneNumberRequest'
      responses:
        '200':
          description: Number successfully reserved.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ReservedPhoneNumber'
              example:
                id: cab29b2d-a8be-43a6-82e1-7eb33b9fc844
                phoneNumber: '+14157046427'
                createdAt: '2026-03-02T17:21:32.602Z'
                updatedAt: '2026-03-02T17:21:32.602Z'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                type: object
                properties:
                  message:
                    type: string
              example:
                message: Phone number must be in E.164 format (e.g. +14155551234)
components:
  schemas:
    ReservePhoneNumberRequest:
      type: object
      required:
        - phoneNumber
      properties:
        phoneNumber:
          type: string
          description: >-
            The phone number to reserve, in E.164 format. Must be a number
            returned by [List available
            numbers](/api-reference/numbers/list-available-numbers).
      additionalProperties: false
    ReservedPhoneNumber:
      type: object
      required:
        - id
        - createdAt
        - updatedAt
        - phoneNumber
      properties:
        id:
          type: string
          format: uuid
          description: Unique identifier for the reserved number.
        phoneNumber:
          type: string
          description: The reserved phone number in E.164 format.
        createdAt:
          type: string
          format: date-time
          description: When the number was reserved.
        updatedAt:
          type: string
          format: date-time
          description: When the record was last updated.
      additionalProperties: false
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        Authentication header containing your Poku API key. Find it in the [Poku
        dashboard](https://dashboard.pokulabs.com/). The format is "Bearer
        YOUR_API_KEY"

````