Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3APH callsign genealogy
Currently held by Swartz, Robert L
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 W3APH's current licensee, walking backwards.
- Swartz, Robert LMOgranted 2005-03-14cancelled 2005-04-02
Successor callsigns
Callsigns held now by people who previously held W3APH.
No current licensee on record previously held this callsign.