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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 426 · 3398 tags · checked today 03:46 UTC · next 16 Nov 03:46 UTC

Most recent 6 observation dates · retained from 7 Oct 2026 to 11 Nov 2026. Choose any date in that range.

  1. AzureSignalR.SoutheastAsia3Added tag · publication 423 → 424

    Addresses+64 IPv4 addresses and 1 IPv6 rangenone dropped

    Prefixes as published+2
    • Added 48.198.202.64/26 new
    • Added 2603:1040:1b02:6::680/122 new

    ID: absent → AzureSignalR.SoutheastAsia3; Region: absent → southeastasia3; Region ID: absent → 110; Service: absent → AzureSignalR; Platform: absent → Azure; Network features: absent →

1 tag

All of them as one list: IPv4 · IPv6 · both

Service AzureSignalR · southeastasia3 · 1 IPv4, 1 IPv6 · tag revision 1 · last changed 29 Oct

  • 2603:1040:1b02:6::680/122
  • 48.198.202.64/26
This tag as a list

Microsoft source JSON · Service-tag documentation · JSON of this selection

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 15 Nov 16:58 UTC · 254 of 275 readable · 250 fully read · documentation 469/469 current

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