> ## Documentation Index
> Fetch the complete documentation index at: https://docs.paytsoftware.com/llms.txt
> Use this file to discover all available pages before exploring further.

# IP addresses

> The fixed IP addresses Payt uses for outbound communication, so you can allowlist them in firewalls.

When Payt initiates a connection to your systems (webhook deliveries and other outbound traffic), requests originate from a fixed set of IP addresses. If your firewall restricts inbound traffic, allowlist these addresses.

## Outbound IP addresses

<Warning>
  These IP addresses are subject to change. Avoid hard-coding them in your application. Reference this page instead, and where possible allowlist by hostname rather than by fixed IP.
</Warning>

| IP address       | Used for                                 |
| ---------------- | ---------------------------------------- |
| `52.212.22.216`  | General outbound communication           |
| `52.212.138.143` | General outbound communication           |
| `34.249.128.162` | [Webhook](/webhooks/overview) deliveries |

<Note>
  This page is the single source for Payt's IP addresses. Other pages link here rather than repeating the values.
</Note>