Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7SPX callsign genealogy
Currently held by Heinrich, Alan
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 N7SPX's current licensee, walking backwards.
- Pahnke, Scott AAZgranted 2020-10-09cancelled 2024-01-26
Successor callsigns
Callsigns held now by people who previously held N7SPX.
- Heinrich, AlanUTgranted 2019-11-08
All historical holders
Every license row we've seen with the callsign N7SPX, oldest first.
- CARLSTROM, EDWIN H AZ2001-05-22 → cancelled 2005-01-03
- Heinrich, Alan NV2019-06-21 → cancelled 2019-11-08
- Pahnke, Scott A AZ2024-01-26 active