Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NI8L callsign genealogy
Currently held by HILLTOP CONTEST CLUB
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 NI8L's current licensee, walking backwards.
- CLARK, JOHN HOHgranted 2008-01-22cancelled 2013-08-06
Successor callsigns
Callsigns held now by people who previously held NI8L.
- DETLOFF, SCOTT RMIgranted 2025-08-05
All historical holders
Every license row we've seen with the callsign NI8L, oldest first.
- HILLTOP CONTEST CLUB OH1999-04-22 → cancelled 2011-04-23
- CLARK, JOHN H OH2023-06-30 active