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N1DUN

Active1x3District 1

Competitive callsign — 1 application filed with the FCC.

License HolderCrossfield, Warren T

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationNorth Andover, MA

Grant DateJul 10, 2018

Expiration DateJul 10, 2028

N1DUN is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Crossfield, Warren T in North Andover, MA. 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 Crossfield, Warren T on Jun 20, 2018. N1DUN has 7 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 31 units(Moderate)

Voice Phonetics

November One Delta Uniform November

Readability: 6.5/10(Good readability)

License History

License ModifiedApr 27, 2020
License ModifiedAug 31, 2018
License IssuedJul 10, 2018
Vanity Callsign GrantedJul 10, 2018
License ExpiredJan 17, 2018
License RenewedJan 14, 2006
FRN Association Email SentJan 13, 2006

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Crossfield, Warren TFiled Jun 20, 2018
Not awardedFCC ↗

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FCC data as of Sep 4, 2026

N1DUN FCC Vanity Status: 1 Competing Application & History