Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB7LH callsign genealogy
Currently held by HEINTZMAN, LAWRENCE 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 KB7LH's current licensee, walking backwards.
- HEINTZMAN, LAWRENCE AWYgranted 2024-12-24cancelled 2026-07-21
Successor callsigns
Callsigns held now by people who previously held KB7LH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB7LH, oldest first.
- SIJER, THOMAS H WA2012-09-25 → cancelled 2024-12-24
- HEINTZMAN, LAWRENCE A WY2026-07-21 active