Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7CSL callsign genealogy
Currently held by Ludwig, Craig 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 K7CSL's current licensee, walking backwards.
- Ludwig, Craig SAZgranted 2006-08-25cancelled 2006-09-15
Successor callsigns
Callsigns held now by people who previously held K7CSL.
No current licensee on record previously held this callsign.