Azure service tags
Public-cloud IP prefixes by service and region, the exact differences between Microsoft's weekly publications, and lists your firewall can read.
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Observed changes
Publication 421 · 3321 tags · checked 08:42 UTC · next 10 Oct 08:42 UTCNo observed change matches this selection. A baseline alone does not establish a change.
Service AzureCognitiveSearch · eastus2 · 2 IPv4, 2 IPv6 · tag revision 4
172.193.3.128/2520.41.4.128/262603:1030:40c:1::180/1212603:1030:40c:20::200/122
Microsoft source JSON · Service-tag documentation · JSON of this selection