Confidence: Medium · Source: FCC ULS · As of 2026-09-15
W0BKR callsign genealogy
Currently held by Hays, Christopher B
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 W0BKR's current licensee, walking backwards.
- Baker, DustinSDgranted 2026-06-18cancelled 2026-08-01
Successor callsigns
Callsigns held now by people who previously held W0BKR.
- Hays, Christopher BTXgranted 2024-07-13cancelled 2024-12-06
- Hays, Christopher BTXgranted 2023-12-27cancelled 2024-04-05
- Hays, Christopher BTXgranted 2022-12-02cancelled 2023-01-21
- W0XXactiveAmateur Radio XperimentersTXgranted 2020-12-18
- Hays, Christopher BTXgranted 2019-04-02cancelled 2019-09-24
- W7ARXcancelledAmateur Radio XperimentersTXgranted 2019-01-01cancelled 2019-03-26
- Hays, Christopher BTXgranted 2012-12-14cancelled 2013-02-01
- Hays, Christopher BTXgranted 2011-01-07cancelled 2012-06-16
All historical holders
Every license row we've seen with the callsign W0BKR, oldest first.
- Hays, Christopher B TX2002-04-03 → cancelled 2002-08-10
- Hays, Christopher B TX2007-02-13 → cancelled 2011-01-07
- Hays, Christopher B TX2012-06-16 → cancelled 2012-12-14
- Amateur Radio Xperimenters TX2015-04-03 → cancelled 2019-01-01
- Hays, Christopher B TX2019-02-16 → cancelled 2019-04-02
- Amateur Radio Xperimenters TX2019-04-23 → cancelled 2020-12-18
- Hays, Christopher B TX2021-01-23 → cancelled 2022-12-02
- Hays, Christopher B TX2023-03-07 → cancelled 2023-12-27
- Hays, Christopher B TX2024-04-05 → cancelled 2024-07-13
- Baker, Dustin SD2026-08-01 active