Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0MFR callsign genealogy
Currently held by KOLLASCH, GEORGE P
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 N0MFR's current licensee, walking backwards.
- Roth, Marcian FVAgranted 2001-11-16cancelled 2008-05-13
Successor callsigns
Callsigns held now by people who previously held N0MFR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0MFR, oldest first.
- KOLLASCH, GEORGE P CO1990-07-17 → cancelled 2002-07-18
- Roth, Marcian F VA2008-05-13 → cancelled 2020-05-14