Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1GP callsign genealogy
Currently held by PORTER III, GILBERT B
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 W1GP's current licensee, walking backwards.
- PROFFITT, STEVE DGAgranted 2026-03-04cancelled 2026-08-04
Successor callsigns
Callsigns held now by people who previously held W1GP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1GP, oldest first.
- PORTER III, GILBERT B NY2014-05-17 → cancelled 2026-07-15
- PROFFITT, STEVE D GA2026-08-04 active