Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6BLO callsign genealogy
Currently held by SHAFFER, DONALD K
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 W6BLO's current licensee, walking backwards.
- Blome, Jonathon SCAgranted 2008-10-07cancelled 2008-10-28
Successor callsigns
Callsigns held now by people who previously held W6BLO.
- BLOME, JONATHON SCOgranted 2017-10-17cancelled 2021-11-02
All historical holders
Every license row we've seen with the callsign W6BLO, oldest first.
- SHAFFER, DONALD K CA1988-01-05 → cancelled 2000-01-06
- BLOME, JONATHON S CO2008-10-28 → cancelled 2017-10-17