Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM5PB callsign genealogy
Currently held by HEFFRON, TOMMY G
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 KM5PB'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 KM5PB.
- HEFFRON, TOMMY GOKgranted 2005-12-06cancelled 2017-12-07