Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3CW callsign genealogy
Currently held by Sparr, Edwin S
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 AB3CW's current licensee, walking backwards.
- Sparr, Edwin SMDgranted 2003-03-11cancelled 2005-04-04
Successor callsigns
Callsigns held now by people who previously held AB3CW.
No current licensee on record previously held this callsign.