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County IT directors outline fallout from Oct. 15 AT&T fiber cut that disrupted 911 service
Summary
County IT and emergency services staff reported an Oct. 15 AT&T backbone fiber cut that impaired Internet and cell towers across a broad corridor, temporarily limiting 911 access for residents without landlines; staff outlined short‑ and long‑term mitigation options and will return with costed proposals and a communications protocol.
Calaveras County’s information technology and emergency services leadership briefed supervisors Oct. 28 on a major AT&T backbone outage on Oct. 15 that disrupted Internet and cellular service and caused partial loss of 911 access across parts of the county.
Len De Groot, the county IT director, said a Caltrans dig struck AT&T fiber and severed a backbone path "from [one] end of the corridor through San Andreas and to Tuolumne County," taking down AT&T service and affecting other providers that rely on AT&T backbone lines. The cut disabled about a dozen cell towers in the area and…
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