W1SO
Active1x2District 1
Competitive callsign — 31 applications filed with the FCC.
License HolderKerrigan, Bruce R
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationStockton Springs, ME
Grant DateJul 8, 2025
Expiration DateSep 13, 2035
W1SO is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by Kerrigan, Bruce R in Stockton Springs, ME. This callsign has attracted significant interest in the amateur radio community, with 31 vanity applications filed with the FCC. The most recent was submitted by Westover, Milton E on Jun 30, 2015. W1SO has 7 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- .---- ... ---
CW Weight: 32 units(Moderate)
Voice Phonetics
Whiskey One Sierra Oscar
Readability: 8/10(High readability)
License History
- License RenewedJul 8, 2025
- Administrative Update AppliedMar 25, 2023
- License RenewedSep 11, 2015
- Vanity Callsign GrantedSep 13, 2005
- License IssuedSep 13, 2005
- Internal Correction AppliedOct 31, 2003
- Internal Correction AppliedOct 31, 2003
Vanity Application Activity
Competing applications filed with the FCC for this callsign.