Home/Search/KP4SM

KP4SM

Expired2x2District 4

Competitive callsign — 5 applications filed with the FCC.

License HolderSAMAR TANOS RADIO GROUP

Min. Class RequiredGeneral

LocationSan Lorenzo, PR

Grant DateApr 12, 2016

Expiration DateApr 12, 2026

Available for ApplicationsApr 13, 2028

CallsignFinder

Track FCC amateur radio vanity callsign availability. Data updated daily.

Legal & Info

Pricing FAQ Terms of Service Privacy Policy

FCC data sourced from FCC Universal Licensing System. Not affiliated with the FCC.

Watchlist Search Account

Home/Search/KP4SM

← Back to results

KP4SM

Expired2x2District 4

Competitive callsign — 5 applications filed with the FCC.

License HolderSAMAR TANOS RADIO GROUP

Min. Class RequiredGeneral

LocationSan Lorenzo, PR

Grant DateApr 12, 2016

Expiration DateApr 12, 2026

Available for ApplicationsApr 13, 2028

KP4SM is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by SAMAR TANOS RADIO GROUP in San Lorenzo, PR. 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 SANTIAGO MARTINEZ, KEYRIANIS D on Jun 21, 2018. KP4SM has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

-.- .--. ....- ... --

CW Weight: 31 units(Moderate)

Voice Phonetics

Kilo Papa Four Sierra Mike

Readability: 8/10(High readability)

Available Apr 13, 2028 (587 days remaining)

Requires General license or higher to apply for this callsign format (2x2).

License History

License IssuedApr 12, 2016
Vanity Callsign GrantedApr 12, 2016
License ExpiredJul 16, 2009

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

SANTIAGO MARTINEZ, KEYRIANIS DFiled Jun 21, 2018
Not awardedFCC ↗
SAMAR TANOS RADIO GROUPFiled Mar 25, 2016
Not awardedFCC ↗
Morales-Mendez, SergioFiled Jul 3, 2013
Not awardedFCC ↗
ALVAREZ, HECTOR LFiled Jun 16, 2011

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KP4SL KP4SN →

FCC data as of Sep 3, 2026

Not awardedFCC ↗

ALVAREZ, HECTOR LFiled Jun 6, 2011

DismissedFCC ↗

KP4SM FCC Vanity Status: 5 Competing Applications & History