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

# List Reservable Subnets

> Returns, per location, the subnets that still have addresses to reserve. A subnet that is full is not listed; how many addresses a subnet has left is not disclosed.



## OpenAPI

````yaml GET /reserved-ips/subnets
openapi: 3.0.3
info:
  title: CloudBlast API
  description: >-
    The CloudBlast V2 API provides a modern RESTful interface for managing your
    cloud infrastructure programmatically. All responses follow a consistent `{
    "data": ... }` or `{ "error": ... }` format.
  version: 2.0.0
servers:
  - url: https://console.cloudblast.io/api/v2
    description: Production
security:
  - bearerAuth: []
paths:
  /reserved-ips/subnets:
    get:
      tags:
        - Reserved IPs
      summary: List reservable subnets
      description: >-
        Returns, per location, the subnets that still have addresses to reserve.
        A subnet that is full is not listed; how many addresses a subnet has
        left is not disclosed.
      operationId: listReservableSubnets
      responses:
        '200':
          description: Subnets per location
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/ReservableLocation'
        '401':
          $ref: '#/components/responses/Unauthenticated'
components:
  schemas:
    ReservableLocation:
      type: object
      properties:
        location:
          type: object
          properties:
            id:
              type: integer
              example: 1
            short_code:
              type: string
              example: nl
            description:
              type: string
              nullable: true
              example: Amsterdam, NL
        subnets:
          type: array
          items:
            type: object
            properties:
              id:
                type: string
                description: Subnet ID to pass to `POST /reserved-ips`
                example: d618ecc9-a614-4bb5-9dd2-67bef1b596ae
              network:
                type: string
                example: 203.0.113.0/24
              type:
                type: string
                enum:
                  - ipv4
                  - ipv6
    Error:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              description: Machine-readable error code
            message:
              type: string
              description: Human-readable error message
          required:
            - code
            - message
  responses:
    Unauthenticated:
      description: Authentication failed
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error:
              code: UNAUTHENTICATED
              message: >-
                Missing or invalid Authorization header. Use: Authorization:
                Bearer <token>
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        API token from your CloudBlast account settings. Pass as `Authorization:
        Bearer <token>`.

````