---
title: "List available phone number blocks"
method: GET
path: "/available_phone_number_blocks"
tags: ["Phone Number Search"]
---

# List available phone number blocks

`GET /available_phone_number_blocks`

## Query parameters

- `filter` object
  - `locality` string — Filter phone numbers by city.
  - `country_code` string — Filter phone numbers by country.
  - `national_destination_code` string — Filter by the national destination code of the number.
  - `phone_number_type` 'local' | 'toll_free' | 'mobile' | 'national' | 'shared_cost' — Filter phone numbers by number type.

## Response `200`

Successful response with a list of available phone numbers blocks.

- object
  - `data` AvailablePhoneNumberBlock[]
    - `record_type` 'available_phone_number_block'
    - `phone_number` string
    - `range` integer
    - `region_information` RegionInformation[]
      - `region_type` 'country_code' | 'rate_center' | 'state' | 'location'
      - `region_name` string
    - `cost_information` CostInformation
      - `upfront_cost` string
      - `monthly_cost` string
      - `currency` string — The ISO 4217 code for the currency.
    - `features` Feature[]
      - `name` string
  - `meta` AvailablePhoneNumbersMetadata
    - `total_results` integer
    - `best_effort_results` integer

## Other responses

- `400` — Bad request, the request was unacceptable, often due to missing a required parameter.
- `401` — Unauthorized
- `404` — The requested resource doesn't exist.
- `422` — Unprocessable entity. Check the 'detail' field in response for details.
- `500` — Unexpected error

---

[API](https://skmtc.net/team-telnyx/apis/telnyx-api-2.md) · [All operations](https://skmtc.net/team-telnyx/apis/telnyx-api-2/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/team-telnyx/telnyx-api-2/versions/8f5f4e537994/schema)