Microsoft Azure uses 206 prefixes for AzureBotService.
Short answer
Microsoft Azure lists these prefixes under “AzureBotService”. 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.
Prefixes
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 102.133.124.8/30; allow 102.133.216.64/30; allow 102.133.28.88/30; allow 102.133.56.64/30; allow 13.66.142.64/30; deny all;
iptables (first 5 prefixes)
iptables -A INPUT -s 102.133.124.8/30 -j ACCEPT iptables -A INPUT -s 102.133.216.64/30 -j ACCEPT iptables -A INPUT -s 102.133.28.88/30 -j ACCEPT iptables -A INPUT -s 102.133.56.64/30 -j ACCEPT iptables -A INPUT -s 13.66.142.64/30 -j ACCEPT
Generate the full list from the CSV, and refresh it on a schedule: providers add and retire prefixes often.
Sources
- Microsoft Azure: published IP ranges · checked 5 Nov 2026
- Microsoft Azure documentation