Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7TWR callsign genealogy
Currently held by Mabee III, Ralph M
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 K7TWR's current licensee, walking backwards.
- MABEE III, RALPH MORgranted 2004-07-07cancelled 2006-09-06
Successor callsigns
Callsigns held now by people who previously held K7TWR.
No current licensee on record previously held this callsign.