Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4PDT callsign genealogy
Currently held by WHITTINGTON, HAROLD D
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 W4PDT's current licensee, walking backwards.
- TANZAR, PAUL DFLgranted 2023-11-08cancelled 2025-04-29
Successor callsigns
Callsigns held now by people who previously held W4PDT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4PDT, oldest first.
- WHITTINGTON, HAROLD D AL2008-02-22 → cancelled 2020-02-25
- TANZAR, PAUL D FL2025-04-29 active