Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3PMP callsign genealogy
Currently held by GREENSLADE, ROBERT W
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 W3PMP's current licensee, walking backwards.
- Wu, Weldon LCAgranted 2017-12-13cancelled 2018-01-03
Successor callsigns
Callsigns held now by people who previously held W3PMP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3PMP, oldest first.
- GREENSLADE, ROBERT W CA1995-03-30 → cancelled 2007-03-31
- Wu, Weldon L CA2018-01-03 active