Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB1FB callsign genealogy
Currently held by Derewiany, Craig 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 AB1FB's current licensee, walking backwards.
- Derewiany, Craig FMAgranted 1997-01-22cancelled 2005-05-11
Successor callsigns
Callsigns held now by people who previously held AB1FB.
No current licensee on record previously held this callsign.