Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9SR callsign genealogy
Currently held by Martin Jr, Delbert E
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 W9SR's current licensee, walking backwards.
- Martin Jr, Delbert EINgranted 2022-06-15cancelled 2022-12-28
Successor callsigns
Callsigns held now by people who previously held W9SR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9SR, oldest first.
- STROUD, RICHARD W IN2013-08-26 → cancelled 2020-09-23
- Martin Jr, Delbert E IN2022-12-28 active