Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4PN callsign genealogy
Currently held by SPENCE, PETER S
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 AI4PN's current licensee, walking backwards.
- SPENCE, PETER SALgranted 2002-09-18cancelled 2006-05-10
Successor callsigns
Callsigns held now by people who previously held AI4PN.
No current licensee on record previously held this callsign.