Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4IBL callsign genealogy
Currently held by CHAPIN, 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 N4IBL's current licensee, walking backwards.
- ROMAN, LUIS DFLgranted 2020-05-27cancelled 2020-06-16
Successor callsigns
Callsigns held now by people who previously held N4IBL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4IBL, oldest first.
- CHAPIN, HAROLD E FL1988-07-05 → cancelled 2000-07-06
- ROMAN, LUIS D FL2020-06-16 active