External IP addresses (Egress)

Warning IP address allow lists are not a recommended approach, see further in this article by GDS with guidance on why we try not to do this anymore: A whitelisting approach for Cloud APIs.)

This page lists the external Public IP addresses used by the firewalls in the Azure platform.

Hubs

Within the Azure Platform, the networking of each virtual network will follow a hub / spoke model. Depending on the environment, it will be connected to one of three network hubs:

Hub	IP Addresses
Sandbox	20.49.137.196, 20.49.137.7
Non production	20.49.168.141, 20.49.168.17
Production	20.50.108.242, 20.50.109.148

Environment hub connection

CFT environment	SDS environment	Hub
AAT	Staging	Production
Prod	Prod	Production
Perftest	Test	Non production
Preview	Dev	Non production
Demo	Demo	Non production
ITHC	ITHC	Non production
PTL	PTL	Non production
Ptlsbox	Ptlsbox	Sandbox
sbox	sbox	Sandbox

For other environments, you can check which hub the virtual network is connected to by reviewing the virtual network peering. If unsure or any additional queries, please raise a request via the #platops-help channel in Slack.

This page was last reviewed on 15 August 2024. It needs to be reviewed again on 15 February 2025 by the page owner platops-build-notices .

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