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Elevated Call Failure Rate on 9180 Number Series(India Region)

Incident Report for Plivo

Resolved

Incident Summary — Elevated Call Failure Rate on 9180 Number Series. Specific number series of 9180 were impacted for outbound calls.

Incident Window:
5th June 2026, 6:30 PM IST — 6th June 11:30 AM IST

Impact:
Outbound calls to the 9180 number series were affected throughout the incident window. The failure rate reached approximately 34% at peak. Other number series and carrier paths were unaffected. The issue appeared to partially ease during low-traffic overnight hours but fully reasserted when business-hours call volumes resumed on the morning of 6 June.

Resolution:
Once issue was detected engineering team analysed the issue and resolved by replacing affected routing infrastructure. Issue was resolved by 6th June 11:30 AM.
Posted Jun 06, 2026 - 13:00 UTC