Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC7ZIP callsign genealogy
Currently held by BROWNING, MARILYN J
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 KC7ZIP's current licensee, walking backwards.
- Brannigan, JohnORgranted 2019-04-02cancelled 2020-09-29
Successor callsigns
Callsigns held now by people who previously held KC7ZIP.
- Brannigan, JohnORgranted 2019-04-02cancelled 2020-09-29
All historical holders
Every license row we've seen with the callsign KC7ZIP, oldest first.
- BROWNING, MARILYN J WA1997-10-13 → cancelled 2009-10-14
- Brannigan, John P OR2017-08-15 → cancelled 2019-04-02