KP4X — CallsignFinder← Back to resultsLicense HolderANTONELLI, WILLIAM V
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
Requires Amateur Extra license or higher to apply for this callsign format (2x1).
License History
- Administrative Update AppliedApr 24, 2026
- Administrative Update AppliedMay 16, 2025
- License ModifiedJun 13, 2022
- License ModifiedFeb 27, 2021
- License ModifiedFeb 18, 2020
- License ModifiedMar 21, 2019
- License IssuedMar 19, 2019
- Vanity Callsign GrantedMar 19, 2019
- License CanceledSep 28, 2018
- Administrative Update AppliedFeb 22, 2017
- Administrative Update AppliedJan 26, 2016
- Administrative Update AppliedOct 28, 2015
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
No competing applications detected. Monitor the FCC ULS application search to verify before filing.
FCC data as of May 26, 2026
Administrative Update Applied
Jun 19, 2015
Administrative Update AppliedJun 10, 2015Administrative Update AppliedFeb 6, 2015FRN Disassociation Letter SentDec 19, 2014FRN Association Email SentDec 18, 2014FRN Association Email SentDec 18, 2014FRN Disassociation Email SentDec 18, 2014FRN Disassociation Email SentDec 18, 2014Administrative Update AppliedJun 3, 2014Administrative Update AppliedNov 26, 2013Administrative Update AppliedOct 25, 2013Administrative Update AppliedSep 4, 2013Administrative Update AppliedAug 6, 2013Administrative Update AppliedMay 31, 2013Administrative Update AppliedMay 3, 2013Administrative Update AppliedApr 23, 2013Administrative Update AppliedOct 16, 2012Administrative Update AppliedAug 21, 2012Administrative Update AppliedJul 3, 2012Administrative Update AppliedMay 10, 2011Administrative Update AppliedMay 3, 2011Administrative Update AppliedMar 8, 2011Administrative Update AppliedSep 25, 2010Administrative Update AppliedJun 29, 2010Administrative Update AppliedMay 7, 2010Administrative Update AppliedMar 2, 2010Administrative Update AppliedFeb 3, 2009Administrative Update AppliedJan 13, 2009Vanity Callsign GrantedJan 10, 2009License IssuedJan 10, 2009Internal Correction AppliedJan 5, 2009Internal Correction AppliedJan 5, 2009