Documented locations
134,257
Current validated source snapshot
Independent public-data index
Explore documented automated license plate reader locations, manufacturers, deployment patterns, and change over time—without the noise.
Documented locations
134,257
Current validated source snapshot
Flock Safety
106,239
Manufacturer explicitly documented
30-day source change
0
Newly documented minus no longer present
Jurisdictions represented
53
States and U.S. jurisdictions with records
National signal
Validated snapshots turn a changing public map into accountable historical context. ALPRSignal tracks what the source documented—and says plainly what it cannot verify.
Built for context
A location can be mapped without independent confirmation. A source record can disappear without equipment being physically removed. ALPRSignal keeps that distinction visible.
Privacy-preserving lookup
Submit one exact state and plate combination. The search is never placed in the URL, saved to browser history, exposed as a public page, or sent to analytics.
No lawful audit-record release has been loaded. The tool stays unavailable rather than returning fabricated matches.
Research notes
ALPR basics
Methodology
Methodology