Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5DAM callsign genealogy
Currently held by MAY, DONALD A
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 W5DAM's current licensee, walking backwards.
- MAY, DONALD ATXgranted 2025-09-05cancelled 2025-12-23
Successor callsigns
Callsigns held now by people who previously held W5DAM.
- MAY, DONALD ATXgranted 2025-09-05cancelled 2025-12-23
All historical holders
Every license row we've seen with the callsign W5DAM, oldest first.
- MAY, DONALD A TX2019-07-06 → cancelled 2025-09-05
- MAY, DONALD A TX2025-12-23 active