Illinois going dark

Public-safety radio sources currently classified as encrypted or partially encrypted, from the latest data sweep (as of 2026-06-16). Newly-detected changes will appear here once a follow-up sweep is compared.

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Franklin County Sheriff (IL) Franklin, IL · as of 2026-06-16 ENCRYPTED Johnston City Police/Fire (IL) Williamson, IL · as of 2026-06-16 ENCRYPTED Midwest Emergency Radio Services (IN/IL) DuPage, IL · as of 2026-06-16 ENCRYPTED Naperville Public Safety (P25) DuPage, IL · as of 2026-06-16 PARTIAL Putnam County Putnam, IL · as of 2026-06-16 PARTIAL Champaign County METCAD MDICE Champaign, IL · as of 2026-06-16 PARTIAL STARCOM21 Statewide Illinois Statewide · Illinois · as of 2026-06-16 PARTIAL DeKalb County Public Safety DeKalb, IL · as of 2026-06-16 PARTIAL Marshall County Public Safety (IL) Marshall, IL · as of 2026-06-16 PARTIAL Mt Vernon IL Public Safety Jefferson, IL · as of 2026-06-16 PARTIAL St. Louis Area Trunked Emergency Radio (SLATER) St. Clair, IL · as of 2026-06-16 PARTIAL SARA Network Rock Island, IL · as of 2026-06-16 PARTIAL