Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4LDO callsign genealogy
Currently held by CALLIS SR, HOWARD L
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 W4LDO's current licensee, walking backwards.
- Hanley, James LVAgranted 2011-12-27cancelled 2012-01-18
Successor callsigns
Callsigns held now by people who previously held W4LDO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4LDO, oldest first.
- CALLIS SR, HOWARD L VA1998-12-01 → cancelled 2010-12-02
- Hanley, James L ID2021-12-08 active