WB4ROI
Active2x3District 4
No competing applications on record.
License HolderMartin III, Charles L
License ClassAmateur Extra
Min. Class RequiredTechnician
LocationBlue Bell, PA
Grant DateSep 7, 2018
Expiration DateDec 3, 2028
WB4ROI is a 2x3 format amateur radio callsign. It is currently registered to Martin III, Charles L in Blue Bell, PA. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.
CW & Voice Analysis
Morse Code
.-- -... ....- .-. --- ..
CW Weight: 36 units(Moderate)
Voice Phonetics
Whiskey Bravo Four Romeo Oscar India
Readability: 6.5/10(Good readability)
License History
- Administrative Update AppliedApr 9, 2024
- License RenewedSep 7, 2018
- Administrative Update AppliedOct 17, 2015
- License RenewedSep 12, 2008
- Administrative Update AppliedFeb 3, 2007
- FRN Association Email SentMar 28, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
No competing applications on record. Verify on the FCC ULS application search before filing.