Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6IPO callsign genealogy
Currently held by Osowski, Peter
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 K6IPO's current licensee, walking backwards.
- Osowski, PeterMAgranted 2014-07-02cancelled 2015-12-29
Successor callsigns
Callsigns held now by people who previously held K6IPO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6IPO, oldest first.
- Fahler, Richard W CA2003-08-07 → cancelled 2015-11-03
- Osowski, Peter MA2015-12-29 active