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/AD4CL

← Back to results

AD4CL

Active2x2District 4

Competitive callsign — 5 applications filed with the FCC.

License HolderBarineau, Mark H

License ClassTechnician

Min. Class RequiredGeneral

LocationHouston, TX

Grant DateSep 20, 2025

Expiration DateSep 20, 2035

AD4CL is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Barineau, Mark H in Houston, TX. 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 Brukardt, Ryan on Sep 2, 2025. AD4CL has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 30 units(Light (fast to send))

Voice Phonetics

Alpha Delta Four Charlie Lima

Readability: 8/10(High readability)

License History

License IssuedSep 20, 2025
Vanity Callsign GrantedSep 20, 2025
License ExpiredApr 7, 2005

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Brukardt, RyanFiled Sep 2, 2025
Not awardedFCC ↗
Lowe, Christopher BFiled Mar 31, 2025
DismissedFCC ↗
HECHAVARRIA PUPO, CARLOSFiled Feb 14, 2022
Not awardedFCC ↗
Lander, Christopher SFiled Feb 13, 2018

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← AD4CK AD4CM →

FCC data as of Sep 12, 2026 — may be delayed

Not awardedFCC ↗

LUCAS JR, CHESTER RFiled Mar 18, 2013

Not awardedFCC ↗

AD4CL FCC Vanity Status: 5 Competing Applications & History