Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N3BLN callsign genealogy
Currently held by SWEARENGEN III, HERBERT N
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 N3BLN's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N3BLN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3BLN, oldest first.
- SWEARENGEN III, HERBERT N AR2005-03-28 → cancelled 2017-06-23
- BOLINE, CRAIG OR2022-01-05 active