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K4ISG

Active1x3District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderWEINSTOCK, ROBERT B

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationTAKOMA PARK, MD

Grant DateApr 7, 2023

Expiration DateApr 7, 2033

K4ISG is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by WEINSTOCK, ROBERT B in TAKOMA PARK, MD. 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 Burdette, Gary L on Mar 20, 2023. K4ISG has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 26 units(Light (fast to send))

Voice Phonetics

Kilo Four India Sierra Golf

Readability: 7.5/10(High readability)

License History

License ModifiedApr 19, 2023
License IssuedApr 7, 2023
Vanity Callsign GrantedApr 7, 2023

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Burdette, Gary LFiled Mar 20, 2023
Not awardedFCC ↗
nolen, dannyFiled Nov 10, 2021
Not awardedFCC ↗

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FCC data as of Jul 9, 2026

K4ISG FCC Vanity Status: 2 Competing Applications & History