Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7SDA callsign genealogy
Currently held by STANWAITY, CHESTER C
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 W7SDA's current licensee, walking backwards.
- KD3AHEcancelledSDA Amateur Radio ClubMDgranted 2024-12-07cancelled 2025-01-07
Successor callsigns
Callsigns held now by people who previously held W7SDA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7SDA, oldest first.
- STANWAITY, CHESTER C WY1995-01-31 → cancelled 1998-04-16
- WASHINGTON DC AREA SDA AMATEUR RADIO CLUB MD2011-03-08 → cancelled 2023-03-09
- SDA Amateur Radio Club MD2025-01-07 active