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County IT and emergency staff outline fixes after AT&T fiber cut disrupted 9‑1‑1 calls

Calaveras County Board of Supervisors · November 19, 2025
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Summary

County IT and Office of Emergency Services briefed the board on an Oct. 15 AT&T fiber cut that knocked out service across a large corridor, forcing 9‑1‑1 reroutes to CHP and Amador County and leaving some residents unable to call emergency services. Staff outlined short‑ and long‑term mitigation options and will return with cost estimates.

Len DeGroot, Calaveras County’s information technology director, and Eric Holt of the Office of Emergency Services described an Oct. 15 cut to an AT&T fiber backbone that disabled AT&T‑based services and affected multiple cell towers from Burson through San Andreas into Tuolumne County.

"It was a pretty large [outage]," DeGroot said. "9‑1‑1 calls to the sheriff's office were rerouted; many of them went through the CHP... and then were forwarded to working cell phones within the sheriff's office and…

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