Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1PDN callsign genealogy
Currently held by Northup, Paul 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 N1PDN's current licensee, walking backwards.
- Northup, Paul DCAgranted 2017-03-02cancelled 2017-03-31
Successor callsigns
Callsigns held now by people who previously held N1PDN.
- Northup, Paul DCAgranted 2018-12-28
All historical holders
Every license row we've seen with the callsign N1PDN, oldest first.
- BOCKIUS, DONALD C TX2005-02-22 → cancelled 2016-05-19
- Northup, Paul D CA2017-03-31 → cancelled 2018-12-28