Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NK5P callsign genealogy
Currently held by ULLMANN, BETTY G
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 NK5P's current licensee, walking backwards.
- Dingeldein, Alan STXgranted 2003-10-06cancelled 2013-05-07
Successor callsigns
Callsigns held now by people who previously held NK5P.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NK5P, oldest first.
- ULLMANN, BETTY G TX2001-01-17 → cancelled 2013-04-17
- Dingeldein, Alan S TX2023-03-17 active