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# Tracking number format: appearance and how to change it

The appearance (format) of your tracking numbers in Nimbata should match how phone numbers are written on your website. 
If you’re using text-based number swapping, differences in formatting may prevent the DNI script from finding and replacing the number correctly.

In Nimbata, you can display tracking numbers in one of the following formats, shown with **+1** as an example country code:

* +1 (123) 456-7890
* +1 123-456-7890
* +11234567890

If text-based swapping isn’t reliable on your site, *e.g. numbers are rendered dynamically*, use **Span Tag** swapping for precise replacement.
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### Step 1. Go to Tracking > Numbers

Inside the Nimbata app, navigate to [Tracking > Numbers](https://app.nimbata.com/tracking/numbers).

### Step 2. Change the format

**For a single number:**
* Click on the number you wish to reformat.
* Change the format to match your website.
* Click the **green check icon** to save.

**For multiple numbers at once:**
* Tick the checkboxes next to all numbers you want to edit.
* Click **'123 / Modify number appearance'**.
* Select your preferred format and click **'Apply'**.

![](https://storage.crisp.chat/users/helpdesk/website/-/2/f/4/5/2f459a49cf382400/image_148zffx.png)

| Using the buttons next to 'Modify number appearance' you can also bulk edit names, assign call flows, move numbers to different projects, and change their source.