Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W2DU callsign genealogy
Currently held by WAIDE, JOHN 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 W2DU's current licensee, walking backwards.
- WAIDE, JOHN ANYgranted 2009-11-10cancelled 2014-07-25
Successor callsigns
Callsigns held now by people who previously held W2DU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W2DU, oldest first.
- MAXWELL, M WALTER FL2005-11-08 → cancelled 2012-07-03
- WAIDE, JOHN A NY2025-11-22 active