Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3BLH callsign genealogy
Currently held by HECK, BRIAN L
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 K3BLH's current licensee, walking backwards.
- HECK, BRIAN LIDgranted 2016-03-02cancelled 2016-08-16
Successor callsigns
Callsigns held now by people who previously held K3BLH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3BLH, oldest first.
- SUMRADA, ROBERT PA2004-04-21 → cancelled 2016-07-15
- HECK, BRIAN L ID2016-08-16 active