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azure · ApplicationInsightsAvailability

Microsoft Azure uses 31 prefixes for ApplicationInsightsAvailability.

Last updated 5 Nov 2026 from Microsoft Azure’s own list (file dated 2026-11-02 (change 425))

Short answer

Microsoft Azure lists these prefixes under “ApplicationInsightsAvailability”. 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 prefixes31
IPv6 prefixes0
Regions in the first 100—
Fetched by peekip5 Nov 2026

Prefixes

PrefixRegion / locationService
13.86.97.224/28—ApplicationInsightsAvailability
191.233.26.176/28—ApplicationInsightsAvailability
191.235.224.80/29—ApplicationInsightsAvailability
20.189.106.64/29—ApplicationInsightsAvailability
20.37.156.64/27—ApplicationInsightsAvailability
20.37.192.80/29—ApplicationInsightsAvailability
20.38.80.80/28—ApplicationInsightsAvailability
20.40.104.96/28—ApplicationInsightsAvailability
20.40.124.176/28—ApplicationInsightsAvailability
20.40.129.32/28—ApplicationInsightsAvailability
20.40.129.96/28—ApplicationInsightsAvailability
20.42.129.32/27—ApplicationInsightsAvailability
20.42.35.32/28—ApplicationInsightsAvailability
20.42.4.64/27—ApplicationInsightsAvailability
20.43.128.96/29—ApplicationInsightsAvailability
20.43.40.80/28—ApplicationInsightsAvailability
20.43.64.80/29—ApplicationInsightsAvailability
20.45.5.160/28—ApplicationInsightsAvailability
23.100.224.16/28—ApplicationInsightsAvailability
40.119.8.96/27—ApplicationInsightsAvailability
40.74.24.80/28—ApplicationInsightsAvailability
40.80.186.128/26—ApplicationInsightsAvailability
40.91.82.48/28—ApplicationInsightsAvailability
51.104.24.80/29—ApplicationInsightsAvailability
51.105.9.128/28—ApplicationInsightsAvailability
51.137.160.80/29—ApplicationInsightsAvailability
51.144.56.96/28—ApplicationInsightsAvailability
52.139.250.96/28—ApplicationInsightsAvailability
52.140.232.160/28—ApplicationInsightsAvailability
52.158.28.64/28—ApplicationInsightsAvailability
52.229.216.48/28—ApplicationInsightsAvailability
Showing 31 of 31 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 13.86.97.224/28;
allow 191.233.26.176/28;
allow 191.235.224.80/29;
allow 20.189.106.64/29;
allow 20.37.156.64/27;
deny all;
iptables (first 5 prefixes)
iptables -A INPUT -s 13.86.97.224/28 -j ACCEPT
iptables -A INPUT -s 191.233.26.176/28 -j ACCEPT
iptables -A INPUT -s 191.235.224.80/29 -j ACCEPT
iptables -A INPUT -s 20.189.106.64/29 -j ACCEPT
iptables -A INPUT -s 20.37.156.64/27 -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 5 Nov 2026
  2. Microsoft Azure documentation