KR4AF
Available2x2District 4
Competitive callsign — 1 application filed with the FCC.
License HolderCONCA, ANTONIO
License ClassGeneral
Min. Class RequiredGeneral
LocationALBUQUERQUE, NM
Grant DateAug 14, 2013
Expiration DateSep 28, 2023
Cancellation DateSep 30, 2025
Available for ApplicationsSep 29, 2025
KR4AF is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by CONCA, ANTONIO in ALBUQUERQUE, NM. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Kostecka, Tony on Aug 3, 2026. KR4AF has 8 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .-. ....- .- ..-.
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Kilo Romeo Four Alpha Foxtrot
Readability: 7.5/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (2x2).
License History
- License ExpiredSep 30, 2025
- Administrative Update AppliedFeb 24, 2018
- Administrative Update AppliedFeb 24, 2018
- Administrative Update AppliedJan 31, 2017
- Administrative Update AppliedJan 28, 2017
- License RenewedAug 14, 2013
- Administrative Update AppliedDec 11, 2004
- License RenewedAug 15, 2003
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Kostecka, TonyFiled Aug 3, 2026Not awardedFCC ↗