Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7PTM callsign genealogy
Currently held by Mulhollen, John
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 K7PTM's current licensee, walking backwards.
- Mulhollen, JohnAZgranted 2023-01-11cancelled 2023-01-31
Successor callsigns
Callsigns held now by people who previously held K7PTM.
- McCain, Timothy AAZgranted 2017-06-06
All historical holders
Every license row we've seen with the callsign K7PTM, oldest first.
- McCain, Timothy A AZ2017-02-07 → cancelled 2017-06-06
- Mulhollen, John AZ2023-01-31 active