Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1CRO callsign genealogy
Currently held by OGREN JR, CHARLES R
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 W1CRO's current licensee, walking backwards.
- Whittum, John SCOgranted 2022-11-22cancelled 2026-06-23
Successor callsigns
Callsigns held now by people who previously held W1CRO.
- OGREN JR, CHARLES RRIgranted 2002-03-28cancelled 2009-05-25
All historical holders
Every license row we've seen with the callsign W1CRO, oldest first.
- OGREN JR, CHARLES R RI2001-03-30 → cancelled 2002-03-28
- WHITTUM, ARTHUR R VA2023-08-19 → cancelled 2026-04-01
- Whittum, John S CO2026-06-23 active
- WHITTUM, ARTHUR R— → cancelled 1997-11-17