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azure · AzureDevOps

Microsoft Azure uses 147 prefixes for AzureDevOps.

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 “AzureDevOps”. 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 prefixes84
IPv6 prefixes63
Regions in the first 100—
Fetched by peekip4 Nov 2026

Prefixes

PrefixRegion / locationService
128.24.232.40/29—AzureDevOps
128.24.235.32/27—AzureDevOps
130.213.112.120/30—AzureDevOps
134.149.110.112/29—AzureDevOps
134.149.110.74/31—AzureDevOps
134.149.110.76/30—AzureDevOps
135.235.135.128/31—AzureDevOps
135.235.135.96/27—AzureDevOps
145.133.35.96/27—AzureDevOps
168.61.229.176/28—AzureDevOps
172.165.40.0/31—AzureDevOps
172.169.145.104/30—AzureDevOps
172.179.226.116/30—AzureDevOps
172.179.229.128/26—AzureDevOps
172.179.229.96/27—AzureDevOps
172.182.17.64/27—AzureDevOps
172.186.108.192/26—AzureDevOps
172.187.17.104/31—AzureDevOps
172.199.233.128/26—AzureDevOps
172.199.233.80/28—AzureDevOps
191.235.226.0/24—AzureDevOps
20.125.155.0/24—AzureDevOps
20.166.41.0/24—AzureDevOps
20.189.107.0/24—AzureDevOps
20.195.68.0/24—AzureDevOps
20.2.105.224/30—AzureDevOps
20.200.34.0/26—AzureDevOps
20.204.197.192/26—AzureDevOps
20.216.121.80/31—AzureDevOps
20.233.130.0/25—AzureDevOps
20.37.158.0/23—AzureDevOps
20.37.194.0/24—AzureDevOps
20.39.13.0/26—AzureDevOps
20.41.194.0/24—AzureDevOps
20.41.6.0/23—AzureDevOps
20.42.134.0/23—AzureDevOps
20.42.226.0/24—AzureDevOps
20.42.5.0/24—AzureDevOps
20.45.196.64/26—AzureDevOps
20.91.148.128/25—AzureDevOps
20.91.56.16/31—AzureDevOps
20.91.91.32/28—AzureDevOps
4.145.0.106/31—AzureDevOps
4.145.0.192/27—AzureDevOps
4.166.33.80/28—AzureDevOps
4.188.8.0/27—AzureDevOps
4.198.222.196/30—AzureDevOps
4.198.222.200/29—AzureDevOps
4.198.222.208/28—AzureDevOps
4.198.222.224/31—AzureDevOps
Showing 50 of 147 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 128.24.232.40/29;
allow 128.24.235.32/27;
allow 130.213.112.120/30;
allow 134.149.110.112/29;
allow 134.149.110.74/31;
deny all;
iptables (first 5 prefixes)
iptables -A INPUT -s 128.24.232.40/29 -j ACCEPT
iptables -A INPUT -s 128.24.235.32/27 -j ACCEPT
iptables -A INPUT -s 130.213.112.120/30 -j ACCEPT
iptables -A INPUT -s 134.149.110.112/29 -j ACCEPT
iptables -A INPUT -s 134.149.110.74/31 -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