Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4IPN callsign genealogy
Currently held by LONDON, ALLAN
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 N4IPN's current licensee, walking backwards.
- London, AllanFLgranted 2026-05-02cancelled 2026-05-27
Successor callsigns
Callsigns held now by people who previously held N4IPN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4IPN, oldest first.
- LONDON, ALLAN FL1988-03-15 → cancelled 2000-03-16
- London, Allan FL2026-05-27 active