---
title: "Get Call Phonebook"
api: "GET /v2/api/call-history/phonebook"
description: "Retrieve the most frequently called phone numbers in your workspace."
---

## Headers
<ParamField header="x-workspace-id" type="string" required>
Workspace identifier for the API.
</ParamField>

## Response Fields

<ResponseField name="data" type="array">
Array of phone number objects ordered by frequency.

<ResponseField name="toPhoneNumber" type="string">
The phone number in E.164 format.
</ResponseField>

</ResponseField>

<ResponseExample>
```json
[
  { "toPhoneNumber": "+14155551234" },
  { "toPhoneNumber": "+14155555678" },
  { "toPhoneNumber": "+14155559012" }
]
```
</ResponseExample>