Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1IVP callsign genealogy
Currently held by TEIS, THEODORE
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 N1IVP's current licensee, walking backwards.
- Teis, TheodoreNCgranted 2008-03-18cancelled 2011-08-09
Successor callsigns
Callsigns held now by people who previously held N1IVP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1IVP, oldest first.
- TEIS, THEODORE CT1991-04-23 → cancelled 2003-04-24
- Teis, Theodore NC2021-10-29 active