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K5ATR

Active1x3District 5

Competitive callsign — 4 applications filed with the FCC.

License HolderUnderbrink, Joseph C

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationSan Antonio, TX

Grant DateJun 8, 2024

Expiration DateJun 8, 2034

K5ATR is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Underbrink, Joseph C in San Antonio, TX. 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 Underbrink, Joseph C on May 21, 2024. K5ATR has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 24 units(Light (fast to send))

Voice Phonetics

Kilo Five Alpha Tango Romeo

Readability: 7.5/10(High readability)

License History

License ModifiedJul 23, 2024
License ModifiedJun 18, 2024
License IssuedJun 8, 2024
Vanity Callsign GrantedJun 8, 2024

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Underbrink, Joseph CFiled May 21, 2024
Not awardedFCC ↗
RUSSELL IV, ALFRED TFiled Feb 7, 2022
Not awardedFCC ↗
Riggs, Aaron TFiled Jan 8, 2021
Not awardedFCC ↗
Girard, Timothy JFiled Mar 30, 2020

Search external databases

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Explore nearby callsigns

← K5ATP K5ATS →

FCC data as of Sep 3, 2026

Not awarded

K5ATR FCC Vanity Status: 4 Competing Applications & History