AB4O
Active2x1District 4
Competitive callsign — 5 applications filed with the FCC.
License HolderSWISHER, JOHN B
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationERWIN, TN
Grant DateJan 12, 2017
Expiration DateApr 10, 2027
AB4O is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by SWISHER, JOHN B in ERWIN, TN. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by Trapp, Robert L on Apr 11, 2007. AB4O has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.- -... ....- ---
CW Weight: 26 units(Light (fast to send))
Voice Phonetics
Alpha Bravo Four Oscar
Readability: 8.5/10(High readability)
License History
- License RenewedJan 12, 2017
- License IssuedApr 10, 2007
- Vanity Callsign GrantedApr 10, 2007
- Internal Correction AppliedMar 19, 2007
- Internal Correction AppliedMar 19, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.