Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1GRM callsign genealogy
Currently held by MUELLECKER, GEORGE R
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 W1GRM's current licensee, walking backwards.
- Muellecker, George RNYgranted 2004-04-22cancelled 2004-05-28
Successor callsigns
Callsigns held now by people who previously held W1GRM.
No current licensee on record previously held this callsign.