Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9MAP callsign genealogy
Currently held by TWIGG, MARY M
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 W9MAP's current licensee, walking backwards.
- TWIGG, MARY MINgranted 1999-02-02cancelled 1999-11-27
Successor callsigns
Callsigns held now by people who previously held W9MAP.
- PERRY, MARTIN AILgranted 1997-03-27cancelled 2009-03-28