# REST API IPs

Lists the outbound IP addresses your systems must safelist on port 443 for REST API access in each PagerDuty service region.

> Notice: This safelist of IP addresses will take effect December 18th, 2023

This page lists the IP addresses that your system must be able to make outbound connections to on TCP port 443 to access our REST API in each of our service regions.

The full list of IP addresses that our REST API may use is:

## US Service Region

### IP Addresses

download: [plain](/ip-safelists/rest-api-us-service-region) | [json](/ip-safelists/rest-api-us-service-region-json)

    44.237.102.140
    35.163.146.4
    52.36.64.228
    34.212.97.30
    44.226.85.110
    52.24.121.31

## EU Service Region

### IP Addresses

download: [plain](/ip-safelists/rest-api-eu-service-region) | [json](/ip-safelists/rest-api-eu-service-region-json)

    3.126.2.17
    3.79.124.225
    18.192.170.210
    3.79.82.135
    3.66.104.172
    3.73.115.116

Please review the list and update your firewall settings where necessary every 30 days to avoid any disruptions to your integrations with PagerDuty.