Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KL7BH callsign genealogy
Currently held by HELIN, WILLIAM J
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 KL7BH's current licensee, walking backwards.
- HELIN, WILLIAM JAKgranted 2017-03-30cancelled 2017-09-01
Successor callsigns
Callsigns held now by people who previously held KL7BH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KL7BH, oldest first.
- FROST, ARLENE N AK1994-03-08 → cancelled 2006-03-09
- McCabe, Patrick T AK2007-07-10 → cancelled 2015-08-12
- HELIN, WILLIAM J WA2017-09-01 active