Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N3TTX callsign genealogy
Currently held by Procopio, David A
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 N3TTX's current licensee, walking backwards.
- Procopio, David APAgranted 2019-08-28cancelled 2019-09-17
Successor callsigns
Callsigns held now by people who previously held N3TTX.
- Procopio, David ACOgranted 2022-02-01
All historical holders
Every license row we've seen with the callsign N3TTX, oldest first.
- GAMBRELL, CAPERS M C L MD2004-09-14 → cancelled 2016-11-16
- Procopio, David A CO2019-09-17 → cancelled 2022-02-01