AF4ST
Available2x2District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderHRITZ, KELLY J
License ClassTechnician
Min. Class RequiredGeneral
LocationTUCSON, AZ
Grant DateAug 1, 2008
Expiration DateAug 31, 2018
Cancellation DateAug 19, 2017
Available for ApplicationsAug 20, 2019
AF4ST is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by HRITZ, KELLY J in TUCSON, AZ. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Langley, Brent S on Feb 17, 2026. AF4ST has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.- ..-. ....- ... -
CW Weight: 23 units(Light (fast to send))
Voice Phonetics
Alpha Foxtrot Four Sierra Tango
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 CanceledAug 19, 2017
- License RenewedAug 1, 2008
- License IssuedMay 5, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.