Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1PHL callsign genealogy
Currently held by Polstra Sr, Philip A
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 K1PHL's current licensee, walking backwards.
- Polstra Sr, Philip APAgranted 2021-03-10cancelled 2021-05-11
Successor callsigns
Callsigns held now by people who previously held K1PHL.
No current licensee on record previously held this callsign.