Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K2UMM callsign genealogy
Currently held by Greensboro DX Association
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 K2UMM's current licensee, walking backwards.
- KJ4DTKcancelledGreensboro DX AssociationNCgranted 2008-04-28cancelled 2008-05-31
Successor callsigns
Callsigns held now by people who previously held K2UMM.
No current licensee on record previously held this callsign.