Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WW4WTT callsign genealogy
Currently held by Black, Margaret K
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 WW4WTT's current licensee, walking backwards.
- Black, Margaret KFLgranted 2014-03-27cancelled 2014-05-23
Successor callsigns
Callsigns held now by people who previously held WW4WTT.
- BLACK, MARGARET KFLgranted 2025-12-02