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/W4ADD

← Back to results

W4ADD

Active1x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderSeyfarth, Robert C

License ClassGeneral

Min. Class RequiredGeneral

LocationHillsborough, NJ

Grant DateFeb 20, 2019

Expiration DateMar 26, 2029

W4ADD is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Seyfarth, Robert C in Hillsborough, NJ. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Cowan, Carroll W on Jan 31, 2005. W4ADD has 2 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 28 units(Light (fast to send))

Voice Phonetics

Whiskey Four Alpha Delta Delta

Readability: 8/10(High readability)

License History

License RenewedFeb 20, 2019
License RenewedMar 26, 2009

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Cowan, Carroll WFiled Jan 31, 2005
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← W4ADC W4ADE →

FCC data as of Sep 3, 2026

W4ADD FCC Vanity Status: 1 Competing Application & History