Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3OSR callsign genealogy
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K3OSR's current licensee, walking backwards.
- KB3BOYcancelledOckanickon Scout Reservation ARCPAgranted 2016-06-06cancelled 2021-08-10
Successor callsigns
Callsigns held now by people who previously held K3OSR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3OSR, oldest first.
- Ockanickon Scout Reservation ARC PA2021-08-10 active
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