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/N4BTR

← Back to results

N4BTR

Active1x3District 4

Competitive callsign — 3 applications filed with the FCC.

License HolderWilliams, J Don

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationLafayette, CA

Grant DateMay 21, 2020

Expiration DateMay 21, 2030

N4BTR is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Williams, J Don in Lafayette, CA. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Reser, Benjamin on Aug 8, 2016. N4BTR has 7 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 25 units(Light (fast to send))

Voice Phonetics

November Four Bravo Tango Romeo

Readability: 7/10(Good readability)

License History

Administrative Update AppliedJun 2, 2021
License RenewedMay 21, 2020
Administrative Update AppliedOct 14, 2015
Administrative Update AppliedJul 23, 2011
Vanity Callsign GrantedNov 17, 2009
License IssuedNov 17, 2009
License ExpiredMar 25, 2009

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Reser, BenjaminFiled Aug 8, 2016
Not awardedFCC ↗
Cole, Javas DFiled Oct 29, 2009
Not awardedFCC ↗
Rice, Benjamin TFiled Oct 29, 2009
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← N4BTP N4BTS →

FCC data as of Sep 4, 2026

N4BTR FCC Vanity Status: 3 Competing Applications & History