KR4OUL
Active2x3District 4
No competing applications on record.
License HolderGierbolini-Martinez, Juan H
License ClassTechnician
Min. Class RequiredTechnician
LocationMayaguez, PR
Grant DateSep 5, 2026
Expiration DateSep 5, 2036
KR4OUL is a 2x3 format amateur radio callsign. It is currently registered to Gierbolini-Martinez, Juan H in Mayaguez, PR. 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: 39 units(Moderate)
Voice Phonetics
Kilo Romeo Four Oscar Uniform Lima
Readability: 6.5/10(Good readability)
License History
- System-Generated GrantSep 5, 2026
- License IssuedSep 5, 2026
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.