Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1MTM callsign genealogy
Currently held by WIPPERMAN, PAUL R
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 K1MTM's current licensee, walking backwards.
- McMurray, Tim PCTgranted 2016-03-22cancelled 2021-09-03
Successor callsigns
Callsigns held now by people who previously held K1MTM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1MTM, oldest first.
- WIPPERMAN, PAUL R MA2006-03-03 → cancelled 2018-05-25
- McMurray, Tim P CT2021-09-03 active