By ZIP Code
Everything for an area: county frequencies, agencies and trunked systems.
By County
RadioReference county ID (ctid). Use Browse if you don't know it.
Trunked System
System details, sites and talkgroups by RadioReference system ID (sid).
Frequency Search
Find who uses a frequency within a county.
Important: This Page is for Manual Lookups Only
This web interface is designed for manual, interactive use only. Lookups pull live from RadioReference on first request and are mirrored to CCA storage with full history.
For automated access: Use the
REST API documented at
/api/v1/docs, or the Cloudflare service binding RADIODB.
Every response reports meta.cache.status, meta.upstream.status
and meta.sources.