Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5ZZO callsign genealogy
Currently held by HAPTONSTALL, JERRY D
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 W5ZZO's current licensee, walking backwards.
- Howe, Walter WTXgranted 2022-05-18cancelled 2022-06-07
Successor callsigns
Callsigns held now by people who previously held W5ZZO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5ZZO, oldest first.
- HAPTONSTALL, JERRY D AR2005-04-05 → cancelled 2017-07-01
- Howe, Walter W TX2022-06-07 active