Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4MBF callsign genealogy
Currently held by RANDALOW, COLETTE T
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 W4MBF's current licensee, walking backwards.
- Cunningham, John MTNgranted 2016-01-15cancelled 2016-02-09
Successor callsigns
Callsigns held now by people who previously held W4MBF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4MBF, oldest first.
- RANDALOW, COLETTE T VA1988-09-20 → cancelled 2000-09-22
- Cunningham, John M TN2026-01-14 active