> For the complete documentation index, see [llms.txt](https://eventx-hq.gitbook.io/knowledge-base/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://eventx-hq.gitbook.io/knowledge-base/check-in/check-in-app/how-to-configure-default-area-code-for-the-check-in-app.md).

# How to Configure Default Area Code for the Check-in App

## Objective

Configure the default calling area code used by the EventX Check-in App.

## Prerequisites

* Organizer access to the event.
* In-person Check-in is enabled for the event.
* EventX Check-in App version 6.2.1 or later is installed on the check-in device.

## Steps

1. Go to the Organizer Portal and open the event.
2. In the left menu, go to **In-person Check-in**.
3. Select the **App Settings** tab.
4. Under **Default Area Code**, select the calling area code that should be used by default in the Check-in App.

<img src="/files/0Es8lnyoiQplLvh5NgQ1" alt="" width="800">

5. Select **Save**.
6. Open or refresh the event in the Check-in App so the latest event settings are applied.

## Notes

* **Default Area Code** only controls the default selected calling area code in the Check-in App. It does not update existing attendee phone numbers or save a standalone area code when the phone number is empty.

## Frequently Asked Questions

### Q: Will the default area code override existing attendee phone numbers?

**A:** No. It only controls the pre-selected area code drop-down in the walk-in form. Existing attendee phone numbers are not modified.

### Q: When does the area code get saved?

**A:** The area code is only saved when a phone number is also entered. If the phone field is left empty, no area code is saved.