Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4TDR callsign genealogy
Currently held by ROLLEN, TERESA A
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 N4TDR's current licensee, walking backwards.
- ROLLEN, TERESA ATNgranted 2021-09-11cancelled 2021-10-01
Successor callsigns
Callsigns held now by people who previously held N4TDR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4TDR, oldest first.
- HARRIS, PHYLLIS V FL2009-04-24 → cancelled 2021-07-16
- ROLLEN, TERESA A TN2021-10-01 active