K4ERK
Active1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderTOLLEFSON, KRIS L
License ClassTechnician
Min. Class RequiredGeneral
LocationBRAINERD, MN
Grant DateNov 19, 2025
Expiration DateJan 7, 2036
K4ERK is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by TOLLEFSON, KRIS L in BRAINERD, MN. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Ecker, Chris on Jan 26, 2021. K4ERK has 7 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- . .-. -.-
CW Weight: 27 units(Light (fast to send))
Voice Phonetics
Kilo Four Echo Romeo Kilo
Readability: 7.5/10(High readability)
License History
- License RenewedNov 19, 2025
- License ModifiedMar 22, 2021
- License RenewedJan 21, 2016
- License ModifiedMar 12, 2007
- Administrative Update AppliedJul 20, 2006
- License IssuedJan 7, 2006
- Vanity Callsign GrantedJan 7, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.