Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9HPT callsign genealogy
Currently held by HALLBERG, LARS A
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 K9HPT's current licensee, walking backwards.
- HALLBERG, LARS AMNgranted 2001-12-14cancelled 2011-10-29
Successor callsigns
Callsigns held now by people who previously held K9HPT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9HPT, oldest first.
- HALLBERG, LARS B WI1996-05-09 → cancelled 2008-05-10
- HALLBERG, LARS A MN2021-08-26 active