Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT3MM callsign genealogy
Currently held by CALDER, IAN A
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 KT3MM's current licensee, walking backwards.
- CALDER, IAN Acancelled 1997-10-28
Successor callsigns
Callsigns held now by people who previously held KT3MM.
No current licensee on record previously held this callsign.