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/K0RSR

← Back to results

K0RSR

Active1x3District 0

Competitive callsign — 4 applications filed with the FCC.

License HolderRandolph, Ryan S

License ClassGeneral

Min. Class RequiredGeneral

LocationGlenwood Springs, CO

Grant DateJun 24, 2025

Expiration DateJun 24, 2035

K0RSR is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Randolph, Ryan S in Glenwood Springs, CO. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Randolph, Ryan S on Jun 5, 2025. K0RSR has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 35 units(Moderate)

Voice Phonetics

Kilo Zero Romeo Sierra Romeo

Readability: 6/10(Good readability)

License History

License ModifiedJun 30, 2025
License IssuedJun 24, 2025
Vanity Callsign GrantedJun 24, 2025

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Randolph, Ryan SFiled Jun 5, 2025
Not awardedFCC ↗
RUGG, ROGER SFiled Oct 31, 2018
Not awardedFCC ↗
Thomsen, Erik CFiled Apr 6, 2017
Not awardedFCC ↗
Zettl, Jeff SFiled Apr 8, 2008

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← K0RSQ K0RSS →

FCC data as of Sep 4, 2026

Not awarded

K0RSR FCC Vanity Status: 4 Competing Applications & History