Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB5SRT callsign genealogy
Currently held by SCHILLING, MARTHA 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 KB5SRT's current licensee, walking backwards.
- Schilling, Martha ENMgranted 2022-04-18cancelled 2022-05-13
Successor callsigns
Callsigns held now by people who previously held KB5SRT.
- Schilling, Martha ENMgranted 2022-05-13
All historical holders
Every license row we've seen with the callsign KB5SRT, oldest first.
- SCHILLING, MARTHA E NM1995-08-22 → cancelled 2004-05-27
- Schilling, Martha E NM2022-05-13 → cancelled 2026-03-31