Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1SHU callsign genealogy
Currently held by CONLON, ROBB J
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 N1SHU's current licensee, walking backwards.
- SCHUMANN, DOUGLAS GCTgranted 2009-02-05cancelled 2018-09-25
Successor callsigns
Callsigns held now by people who previously held N1SHU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1SHU, oldest first.
- CONLON, ROBB J CT1994-07-13 → cancelled 2006-07-14
- SCHUMANN, DOUGLAS G CT2018-09-25 active