Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5WUP callsign genealogy
Currently held by EICHENBERGER, FRANK C
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 W5WUP's current licensee, walking backwards.
- EICHENBERGER, DAVID CARgranted 2018-05-22cancelled 2021-05-21
Successor callsigns
Callsigns held now by people who previously held W5WUP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5WUP, oldest first.
- EICHENBERGER, FRANK C AR2005-07-30 → cancelled 2017-08-01
- EICHENBERGER, DAVID C AR2021-05-21 active