Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4LBB callsign genealogy
Currently held by MAC DONALD, ALAN F
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 W4LBB's current licensee, walking backwards.
- FRANTZ, DARRELL TFLgranted 1998-01-12cancelled 2007-07-17
Successor callsigns
Callsigns held now by people who previously held W4LBB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4LBB, oldest first.
- MAC DONALD, ALAN F FL1994-03-01 → cancelled 2006-03-02
- FRANTZ, DARRELL T FL2017-06-02 active