Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KL7NN callsign genealogy
Currently held by Caligan, Harold 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 KL7NN's current licensee, walking backwards.
- CALIGAN, HAROLD Ecancelled 1997-10-09
Successor callsigns
Callsigns held now by people who previously held KL7NN.
No current licensee on record previously held this callsign.