Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4TPM callsign genealogy
Currently held by Glassman, Ronald D
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 KK4TPM's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KK4TPM.
- Glassman, Ronald DPAgranted 2013-08-29cancelled 2025-08-30