---
title: "List number group memberships"
method: GET
path: "/api/relay/rest/number_groups/{NumberGroupId}/number_group_memberships"
tags: ["Number Group Membership"]
---

# List number group memberships

`GET /api/relay/rest/number_groups/{NumberGroupId}/number_group_memberships`

## Request

- Base URL: `https://{Your_Space_Name}.signalwire.com`
- URL: `https://{Your_Space_Name}.signalwire.com/api/relay/rest/number_groups/{NumberGroupId}/number_group_memberships`
- Auth: HTTP basic

Lists the project-owned phone numbers that belong to one Number Group. Use it to understand which senders make up the pool; use [List phone numbers](/docs/apis/rest/phone-numbers/list-phone-numbers) for all numbers owned by the project.

#### Permissions

The API token used to authenticate must have the following scope(s) enabled to make a successful request: _Numbers_.

[Learn more about API scopes](/docs/platform/your-signalwire-api-space).

## Path parameters

- `NumberGroupId` string, uuid, required: Universal Unique Identifier.

## Query parameters

- `page_number` integer
- `page_size` integer
- `page_token` string

## Response `200`

The request has succeeded.

- NumberGroupMembershipListResponse: Response containing a list of number group memberships.
  - `links` PaginationLinks, required: Pagination links for list responses.
    - `self` string, required: Link to the current page.
    - `first` string, required: Link to the first page.
    - `next` string: Link to the next page. Only present when there are more results.
    - `prev` string: Link to the previous page. Only present when not on the first page.
  - `data` NumberGroupMembership[], required: List of number group memberships.
    - `id` string, uuid, required: Universal Unique Identifier.
    - `number_group_id` string, uuid, required: Universal Unique Identifier.
    - `phone_number` MembershipPhoneNumber, required: Phone number representation within a membership.
      - `id` string, uuid: Universal Unique Identifier.
      - `name` string: The name given to the phone number.
      - `number` string: The phone number in E.164 format.
      - `capabilities` string[]: The capabilities of the phone number.
    - `created_at` string, required: The date and time when the membership was created.
    - `updated_at` string, required: The date and time when the membership was last updated.

## Other responses

- `401`: Access is unauthorized.
- `404`: The server cannot find the requested resource.
- `422`: The request failed validation. See errors for details.
- `500`: An internal server error occurred.

---

[API](https://skmtc.dev/signalwire/apis/signalwire-rest-api.md) - [All operations](https://skmtc.dev/signalwire/apis/signalwire-rest-api/llms.txt) - [OpenAPI document](https://skmtc.dev/signalwire/apis/signalwire-rest-api/revisions/7307749294e0?raw)