---
title: "Retrieve a list of Extensions for the Assigned Add-on."
method: GET
path: "/2010-04-01/Accounts/{AccountSid}/IncomingPhoneNumbers/{ResourceSid}/AssignedAddOns/{AssignedAddOnSid}/Extensions.json"
tags: ["Api20100401AssignedAddOnExtension"]
---

# Retrieve a list of Extensions for the Assigned Add-on.

`GET /2010-04-01/Accounts/{AccountSid}/IncomingPhoneNumbers/{ResourceSid}/AssignedAddOns/{AssignedAddOnSid}/Extensions.json`

Retrieve a list of Extensions for the Assigned Add-on.

## Path parameters

- `AccountSid` string, required
- `ResourceSid` string, required
- `AssignedAddOnSid` string, required

## Query parameters

- `PageSize` integer
- `Page` integer
- `PageToken` string

## Response `200`

OK

- object
  - `end` integer
  - `first_page_uri` string, uri
  - `next_page_uri` string, uri, nullable
  - `page` integer
  - `page_size` integer
  - `previous_page_uri` string, uri, nullable
  - `start` integer
  - `uri` string, uri
  - `extensions` ApiV2010AccountIncomingPhoneNumberIncomingPhoneNumberAssignedAddOnIncomingPhoneNumberAssignedAddOnExtension[]
    - `sid` string, nullable — The unique string that that we created to identify the resource.
    - `account_sid` string, nullable — The SID of the [Account](https://www.twilio.com/docs/iam/api/account) that created the resource.
    - `resource_sid` string, nullable — The SID of the Phone Number to which the Add-on is assigned.
    - `assigned_add_on_sid` string, nullable — The SID that uniquely identifies the assigned Add-on installation.
    - `friendly_name` string, nullable — The string that you assigned to describe the resource.
    - `product_name` string, nullable — A string that you assigned to describe the Product this Extension is used within.
    - `unique_name` string, nullable — An application-defined string that uniquely identifies the resource. It can be used in place of the resource's `sid` in the URL to address the resource.
    - `uri` string, nullable — The URI of the resource, relative to `https://api.twilio.com`.
    - `enabled` boolean, nullable — Whether the Extension will be invoked.

## Changes

- **2025-02-20** (v2010) `ed1b16ce6378` — 1 breaking
  - for the `query` request parameter `PageSize`, the format changed from no format to `int64`

[Change history](https://skmtc.dev/twilio/apis/api-v2010/changes/2010-04-01/Accounts/:AccountSid/IncomingPhoneNumbers/:ResourceSid/AssignedAddOns/:AssignedAddOnSid/Extensions.json/get.md)

---

[API](https://skmtc.dev/twilio/apis/api-v2010.md) · [All operations](https://skmtc.dev/twilio/apis/api-v2010/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/twilio/api-v2010/revisions/6b6ffccef14c/schema)