Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4HKR callsign genealogy
Currently held by Bowdoin, Bernarr M
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 K4HKR's current licensee, walking backwards.
- KR4EGEcancelledTampa Hackerspace Amateur Radio ClubFLgranted 2025-05-30cancelled 2025-06-17
Successor callsigns
Callsigns held now by people who previously held K4HKR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4HKR, oldest first.
- Bowdoin, Bernarr M AL2005-03-17 → cancelled 2017-06-16
- Tampa Hackerspace Amateur Radio Club FL2025-06-17 active