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N4IRN

Active1x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderWarburton, John

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationGLENWOOD, MD

Grant DateApr 12, 2023

Expiration DateJul 9, 2033

N4IRN is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Warburton, John in GLENWOOD, MD. 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 Warburton, John on Jun 17, 2003. N4IRN has 10 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 22 units(Light (fast to send))

Voice Phonetics

November Four India Romeo November

Readability: 6/10(Good readability)

License History

License RenewedApr 12, 2023
License RenewedApr 26, 2013
Administrative Update AppliedMay 4, 2012
License ModifiedOct 17, 2005
Authorization PrintedAug 26, 2003
Internal Correction AppliedAug 25, 2003
Internal Duplicate RequestedAug 25, 2003
Vanity Callsign GrantedJul 9, 2003
License IssuedJul 9, 2003
License ExpiredFeb 8, 2001

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Warburton, JohnFiled Jun 17, 2003
Not awardedFCC ↗

Search external databases

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← N4IRM N4IRO →

FCC data as of Sep 4, 2026

N4IRN FCC Vanity Status: 1 Competing Application & History