Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3TDC callsign genealogy
Currently held by Crane, Tammy D
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 W3TDC's current licensee, walking backwards.
- Crane, Tammy DOKgranted 2014-11-05cancelled 2014-11-25
Successor callsigns
Callsigns held now by people who previously held W3TDC.
No current licensee on record previously held this callsign.