Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N2ESF callsign genealogy
Currently held by DI PALMA, FRANK V
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 N2ESF's current licensee, walking backwards.
- KEMPF, WILLIAMTXgranted 2024-07-02cancelled 2025-04-25
Successor callsigns
Callsigns held now by people who previously held N2ESF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N2ESF, oldest first.
- DI PALMA, FRANK V NJ2004-08-30 → cancelled 2016-08-31
- KEMPF, WILLIAM TX2025-04-25 active