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azure · AzureUpdateDelivery

Microsoft Azure uses 184 prefixes for AzureUpdateDelivery.

Last updated 4 Nov 2026 from Microsoft Azure’s own list (file dated 2026-11-02 (change 425))

Short answer

Microsoft Azure lists these prefixes under “AzureUpdateDelivery”. Microsoft publishes Azure’s ranges weekly as Service Tags: named groups such as AzureCloud, Storage, Sql or AzureFrontDoor.Frontend, each a list of prefixes. We import the global (non-regional) tags.

IPv4 prefixes144
IPv6 prefixes40
Regions in the first 100—
Fetched by peekip4 Nov 2026

Prefixes

PrefixRegion / locationService
108.143.102.73/32—AzureUpdateDelivery
13.67.191.143/32—AzureUpdateDelivery
13.74.48.234/32—AzureUpdateDelivery
13.85.16.101/32—AzureUpdateDelivery
13.85.22.21/32—AzureUpdateDelivery
13.85.23.206/32—AzureUpdateDelivery
13.85.23.6/32—AzureUpdateDelivery
13.85.23.86/32—AzureUpdateDelivery
13.95.26.222/32—AzureUpdateDelivery
13.95.26.4/32—AzureUpdateDelivery
13.95.27.105/32—AzureUpdateDelivery
13.95.31.127/32—AzureUpdateDelivery
13.95.31.18/32—AzureUpdateDelivery
13.95.31.95/32—AzureUpdateDelivery
172.171.99.12/32—AzureUpdateDelivery
20.10.149.151/32—AzureUpdateDelivery
20.109.209.108/31—AzureUpdateDelivery
20.114.58.110/32—AzureUpdateDelivery
20.114.58.89/32—AzureUpdateDelivery
20.114.59.104/32—AzureUpdateDelivery
20.114.59.183/32—AzureUpdateDelivery
20.114.59.46/32—AzureUpdateDelivery
20.12.23.50/32—AzureUpdateDelivery
20.12.236.228/32—AzureUpdateDelivery
20.14.199.74/32—AzureUpdateDelivery
20.14.199.81/32—AzureUpdateDelivery
20.165.191.133/32—AzureUpdateDelivery
20.165.241.177/32—AzureUpdateDelivery
20.166.126.56/32—AzureUpdateDelivery
20.166.2.191/32—AzureUpdateDelivery
20.187.39.6/32—AzureUpdateDelivery
20.189.123.131/32—AzureUpdateDelivery
20.190.9.86/32—AzureUpdateDelivery
20.191.46.109/32—AzureUpdateDelivery
20.191.46.211/32—AzureUpdateDelivery
20.242.39.171/32—AzureUpdateDelivery
20.3.187.198/32—AzureUpdateDelivery
20.41.24.231/32—AzureUpdateDelivery
20.44.79.107/32—AzureUpdateDelivery
20.54.110.119/32—AzureUpdateDelivery
20.54.123.4/32—AzureUpdateDelivery
20.54.24.148/32—AzureUpdateDelivery
20.54.24.169/32—AzureUpdateDelivery
20.54.24.231/32—AzureUpdateDelivery
20.54.24.246/32—AzureUpdateDelivery
20.54.24.69/32—AzureUpdateDelivery
20.54.24.79/32—AzureUpdateDelivery
20.54.25.123/32—AzureUpdateDelivery
20.54.25.16/32—AzureUpdateDelivery
20.54.25.34/32—AzureUpdateDelivery
Showing 50 of 184 prefixes All prefixes (CSV)

What changed

No prefixes added or removed since we started tracking this list. Changes appear here the day after the provider publishes them.

Allowlist formats

nginx (first 5 prefixes)
allow 108.143.102.73/32;
allow 13.67.191.143/32;
allow 13.74.48.234/32;
allow 13.85.16.101/32;
allow 13.85.22.21/32;
deny all;
iptables (first 5 prefixes)
iptables -A INPUT -s 108.143.102.73/32 -j ACCEPT
iptables -A INPUT -s 13.67.191.143/32 -j ACCEPT
iptables -A INPUT -s 13.74.48.234/32 -j ACCEPT
iptables -A INPUT -s 13.85.16.101/32 -j ACCEPT
iptables -A INPUT -s 13.85.22.21/32 -j ACCEPT

Generate the full list from the CSV, and refresh it on a schedule: providers add and retire prefixes often.

Sources

  1. Microsoft Azure: published IP ranges · checked 4 Nov 2026
  2. Microsoft Azure documentation