CFCallsignFinder

Search Watchlist

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

Legal & Info

Pricing FAQ Terms of Service Privacy Policy

© 2026 CallsignFinder. All rights reserved.

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

Watchlist Search Account

Home/Search/K4RPK

← Back to results

K4RPK

Active1x3District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderKing Sr, Robert P

License ClassGeneral

Min. Class RequiredGeneral

LocationReidsville, NC

Grant DateFeb 21, 2020

Expiration DateMay 4, 2030

K4RPK is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by King Sr, Robert P in Reidsville, NC. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Kehnel, Rick on Sep 3, 2021. K4RPK has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 34 units(Moderate)

Voice Phonetics

Kilo Four Romeo Papa Kilo

Readability: 7.5/10(High readability)

License History

License RenewedFeb 21, 2020
License IssuedMay 4, 2010
Vanity Callsign GrantedMay 4, 2010
License ExpiredJan 28, 2009

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Kehnel, RickFiled Sep 3, 2021
DismissedFCC ↗
King Sr, Robert PFiled Apr 16, 2010
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← K4RPI K4RPM →

FCC data as of Sep 4, 2026

K4RPK FCC Vanity Status: 2 Competing Applications & History