Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KU3H callsign genealogy
Currently held by POSAVEC, LAWRENCE C
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 KU3H's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KU3H.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KU3H, oldest first.
- POSAVEC, LAWRENCE C PA2005-05-31 → cancelled 2016-10-05
- Wallin, Mark J PA2026-08-13 active