---
id: 'manage-usage-ipv4'
title: 'Manage IPv4 usage'
---

## What you are charged for

You can assign a dedicated [IPv4 address](/docs/guides/platform/ipv4-address) to a database by enabling the [IPv4 add-on](/dashboard/project/_/settings/addons?panel=ipv4). You are charged for all IPv4 addresses configured across your databases.

<Admonition type="note">

IPv4 Hours are **not** covered by the [Spend Cap](/docs/guides/platform/cost-control#spend-cap).

</Admonition>

<Admonition type="note">

If the primary database has a dedicated IPv4 address configured, its Read Replicas are also assigned one, with charges for each.

</Admonition>

## How charges are calculated

IPv4 addresses are charged by the hour, meaning you are charged for the exact number of hours that an IPv4 address is assigned to a database. If an address is assigned for part of an hour, you are still charged for the full hour.

### Example

Your billing cycle runs from January 1 to January 31. On January 10 at 4:30 PM, you enable the IPv4 add-on for your project. At the end of the billing cycle you are billed for 512 hours.

| Time Window                                 | IPv4 add-on | Hours Billed | Description         |
| ------------------------------------------- | ----------- | ------------ | ------------------- |
| January 1, 00:00 AM - January 10, 4:00 PM   | Disabled    | 0            |                     |
| January 10, 04:00 PM - January 10, 4:30 PM  | Disabled    | 0            |                     |
| January 10, 04:30 PM - January 10, 5:00 PM  | Enabled     | 1            | full hour is billed |
| January 10, 05:00 PM - January 31, 23:59 PM | Enabled     | 511          |                     |

### Usage on your invoice

Usage is shown as "IPv4 Hours" on your invoice.

## Pricing

<Price price="0.0055" /> per hour (<Price price="4" /> per month).

## Billing examples

### One project

The project has the IPv4 add-on enabled throughout the entire billing cycle.

| Line Item                     | Hours | Costs                    |
| ----------------------------- | ----- | ------------------------ |
| Pro Plan                      | -     | <Price price="25" />     |
| Compute Hours Micro Project 1 | 744   | <Price price="10" />     |
| IPv4 Hours                    | 744   | <Price price="4" />      |
| **Subtotal**                  |       | **<Price price="39" />** |
| Compute Credits               |       | -<Price price="10" />    |
| **Total**                     |       | **<Price price="29" />** |

### Multiple projects

All projects have the IPv4 add-on enabled throughout the entire billing cycle.

| Line Item                     | Hours | Costs                    |
| ----------------------------- | ----- | ------------------------ |
| Pro Plan                      | -     | <Price price="25" />     |
|                               |       |                          |
| Compute Hours Micro Project 1 | 744   | <Price price="10" />     |
| IPv4 Hours Project 1          | 744   | <Price price="4" />      |
|                               |       |                          |
| Compute Hours Micro Project 2 | 744   | <Price price="10" />     |
| IPv4 Hours Project 2          | 744   | <Price price="4" />      |
|                               |       |                          |
| Compute Hours Micro Project 3 | 744   | <Price price="10" />     |
| IPv4 Hours Project 3          | 744   | <Price price="4" />      |
|                               |       |                          |
| **Subtotal**                  |       | **<Price price="67" />** |
| Compute Credits               |       | -<Price price="10" />    |
| **Total**                     |       | **<Price price="57" />** |

### One project with Read Replicas

The project has two Read Replicas and the IPv4 add-on enabled throughout the entire billing cycle.

| Line Item                     | Hours | Costs                    |
| ----------------------------- | ----- | ------------------------ |
| Pro Plan                      | -     | <Price price="25" />     |
|                               |       |                          |
| Compute Hours Small Project 1 | 744   | <Price price="15" />     |
| IPv4 Hours Project 1          | 744   | <Price price="4" />      |
|                               |       |                          |
| Compute Hours Small Replica 1 | 744   | <Price price="15" />     |
| IPv4 Hours Replica 1          | 744   | <Price price="4" />      |
|                               |       |                          |
| Compute Hours Small Replica 2 | 744   | <Price price="15" />     |
| IPv4 Hours Replica 2          | 744   | <Price price="4" />      |
|                               |       |                          |
| **Subtotal**                  |       | **<Price price="82" />** |
| Compute Credits               |       | -<Price price="10" />    |
| **Total**                     |       | **<Price price="72" />** |

### Add-on disabled after a day

Project add-ons are billed in arrears based on how many hours you used them.
If you remove the IPv4 add-on, you are no longer billed from the time of removal onward.

| Line Item                     | Hours | Costs                       |
| ----------------------------- | ----- | --------------------------- |
| Pro Plan                      | -     | <Price price="25" />        |
|                               |       |                             |
| Compute Hours Micro Project 1 | 744   | <Price price="10" />        |
| IPv4 Hours Project 1          | 24    | <Price price="0.13" />      |
|                               |       |                             |
| **Subtotal**                  |       | **<Price price="35.13" />** |
| Compute Credits               |       | -<Price price="10" />       |
| **Total**                     |       | **<Price price="25.13" />** |

## Optimize usage

To see whether your database actually needs a dedicated IPv4 address, refer to [When you need the IPv4 add-on](/docs/guides/platform/ipv4-address#when-you-need-the-ipv4-add-on).
