Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3PTL callsign genealogy
Currently held by Kolb, Stephen P
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 W3PTL's current licensee, walking backwards.
- Kolb, Stephen PALgranted 2015-10-14cancelled 2015-11-03
Successor callsigns
Callsigns held now by people who previously held W3PTL.
No current licensee on record previously held this callsign.