Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4LZF callsign genealogy
Currently held by Bloom, Nicholas A
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 KJ4LZF's current licensee, walking backwards.
- Bloom, Nicholas AVAgranted 2006-01-20cancelled 2009-05-13
Successor callsigns
Callsigns held now by people who previously held KJ4LZF.
- Bloom, Nicholas AOHgranted 2026-02-12