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azure · AzureMonitor.Core

Microsoft Azure uses 1,056 prefixes for AzureMonitor.Core.

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 “AzureMonitor.Core”. 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 prefixes585
IPv6 prefixes471
Regions in the first 100—
Fetched by peekip5 Nov 2026

Prefixes

PrefixRegion / locationService
102.133.126.152/29—AzureMonitor.Core
102.133.126.64/27—AzureMonitor.Core
102.133.221.160/27—AzureMonitor.Core
102.133.254.224/29—AzureMonitor.Core
102.37.64.128/27—AzureMonitor.Core
102.37.72.240/29—AzureMonitor.Core
102.37.80.64/27—AzureMonitor.Core
104.208.144.88/29—AzureMonitor.Core
104.208.170.144/28—AzureMonitor.Core
104.208.18.64/29—AzureMonitor.Core
104.214.164.128/27—AzureMonitor.Core
104.214.166.96/29—AzureMonitor.Core
104.46.162.64/27—AzureMonitor.Core
104.46.179.128/27—AzureMonitor.Core
108.140.6.64/27—AzureMonitor.Core
108.143.178.24/29—AzureMonitor.Core
13.66.145.232/29—AzureMonitor.Core
13.66.150.216/29—AzureMonitor.Core
13.67.15.112/29—AzureMonitor.Core
13.67.21.64/29—AzureMonitor.Core
13.69.109.224/27—AzureMonitor.Core
13.69.111.200/29—AzureMonitor.Core
13.69.233.96/27—AzureMonitor.Core
13.69.239.96/29—AzureMonitor.Core
13.70.79.88/29—AzureMonitor.Core
13.70.79.96/27—AzureMonitor.Core
13.71.175.216/29—AzureMonitor.Core
13.71.177.32/27—AzureMonitor.Core
13.74.111.152/29—AzureMonitor.Core
13.74.203.56/29—AzureMonitor.Core
13.80.199.128/25—AzureMonitor.Core
13.80.217.192/26—AzureMonitor.Core
13.81.159.0/24—AzureMonitor.Core
13.86.223.128/26—AzureMonitor.Core
13.89.179.0/29—AzureMonitor.Core
130.33.125.48/28—AzureMonitor.Core
131.163.109.112/28—AzureMonitor.Core
131.163.109.160/27—AzureMonitor.Core
134.112.226.128/27—AzureMonitor.Core
134.112.76.112/28—AzureMonitor.Core
134.112.77.0/27—AzureMonitor.Core
134.138.82.192/27—AzureMonitor.Core
134.138.94.192/27—AzureMonitor.Core
134.138.98.136/29—AzureMonitor.Core
135.116.174.224/27—AzureMonitor.Core
135.116.175.0/26—AzureMonitor.Core
135.149.221.128/27—AzureMonitor.Core
135.149.221.64/26—AzureMonitor.Core
135.235.60.128/28—AzureMonitor.Core
135.235.60.96/27—AzureMonitor.Core
Showing 50 of 1,056 prefixes All prefixes (CSV)

What changed

  • 4 Nov 2026
    + 145.133.208.0/26
+ 172.166.7.160/28
  • 30 Oct 2026
    + 130.33.125.48/28
+ 172.143.2.192/26
+ 172.143.4.144/28
+ 172.143.6.0/25
+ 172.143.6.208/28
+ 172.143.7.0/25
+ 2603:1030:210:47::738/125
+ 2603:1030:210:48::700/122
+ 4.216.6.160/29
+ 74.159.249.224/27
+ 74.159.251.0/26
+ 74.159.251.160/27
+ 74.159.251.192/26
  • 16 Oct 2026
    + 2603:1030:1702:7::300/122
+ 48.196.163.64/26
+ 57.162.6.0/25

Allowlist formats

nginx (first 5 prefixes)
allow 102.133.126.152/29;
allow 102.133.126.64/27;
allow 102.133.221.160/27;
allow 102.133.254.224/29;
allow 102.37.64.128/27;
deny all;
iptables (first 5 prefixes)
iptables -A INPUT -s 102.133.126.152/29 -j ACCEPT
iptables -A INPUT -s 102.133.126.64/27 -j ACCEPT
iptables -A INPUT -s 102.133.221.160/27 -j ACCEPT
iptables -A INPUT -s 102.133.254.224/29 -j ACCEPT
iptables -A INPUT -s 102.37.64.128/27 -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