Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1JOE callsign genealogy
Currently held by SHALLENBERGER, TODD H
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 N1JOE's current licensee, walking backwards.
- Hammond, JosephTXgranted 2022-04-04cancelled 2023-09-26
Successor callsigns
Callsigns held now by people who previously held N1JOE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1JOE, oldest first.
- SHALLENBERGER, TODD H PA2011-04-29 → cancelled 2023-07-12
- Hammond, Joseph TX2023-09-26 active