Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WO5K callsign genealogy
Currently held by MC DANIEL, ROBERT 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 WO5K's current licensee, walking backwards.
- CHU, HAOYUANTXgranted 2019-07-16cancelled 2019-08-06
Successor callsigns
Callsigns held now by people who previously held WO5K.
- Richey, Paul JNMgranted 2009-07-17cancelled 2009-10-09
All historical holders
Every license row we've seen with the callsign WO5K, oldest first.
- MC DANIEL, ROBERT M TX1996-08-07 → cancelled 1993-01-10
- Richey, Paul J NM2008-02-12 → cancelled 2009-07-17
- Richey, Paul J NM2009-10-09 → cancelled 2017-06-12
- CHU, HAOYUAN TX2019-08-06 active