Direct Routing SIP connection points for commercial clouds resolve to 52.112.0.0/14 and 52.120.0.0/14, and Microsoft says firewalls must allow all Teams ranges rather than only addresses returned by DNS.

Checked 2026-10-14

Vendor
Microsoft
Product
Teams Direct Routing
Subsystem
firewall
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-10-14
Checked
2026-10-14

Sources

Cite this note

APA

WarmTransfer. (2026, October 14). Running a virtual SBC in Azure or AWS: source note cloud-hosted-sbc-dr-signaling-ip-ranges. WarmTransfer. https://warmtransfer.net/knowledge/claims/cloud-hosted-sbc-dr-signaling-ip-ranges

BibTeX

@misc{warmtransfer-claim-cloud-hosted-sbc-dr-signaling-ip-ranges,
  title  = {Running a virtual SBC in Azure or AWS: source note cloud-hosted-sbc-dr-signaling-ip-ranges},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cloud-hosted-sbc-dr-signaling-ip-ranges},
  note   = {Source note cloud-hosted-sbc-dr-signaling-ip-ranges, checked 2026-10-14}
}

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