Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB5MLL callsign genealogy
Currently held by HARDENFELDER, NAN
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 KB5MLL's current licensee, walking backwards.
- Lockwood III, Michael LTXgranted 2006-08-22cancelled 2015-03-03
Successor callsigns
Callsigns held now by people who previously held KB5MLL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB5MLL, oldest first.
- HARDENFELDER, NAN TX1990-04-17 → cancelled 2002-04-18
- Lockwood III, Michael L TX2015-03-03 active