Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0TDS callsign genealogy
Currently held by BOLGER, ALLEN E
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 N0TDS's current licensee, walking backwards.
- Hendrickson, Duane LILgranted 2015-07-23cancelled 2021-04-09
Successor callsigns
Callsigns held now by people who previously held N0TDS.
- BOLGER, ALSDgranted 2021-11-30
All historical holders
Every license row we've seen with the callsign N0TDS, oldest first.
- BOLGER, ALLEN E CO1994-02-15 → cancelled 2000-07-11
- Hendrickson, Duane L IL2021-04-09 active