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AA1SD

Available2x2District 1

Competitive callsign — 2 applications filed with the FCC.

License HolderDUMSER JR, JOHN M

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationHARVARD, MA

Grant DateApr 28, 1997

Expiration DateFeb 15, 2006

Cancellation DateFeb 16, 2008

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AA1SD

Available2x2District 1

Competitive callsign — 2 applications filed with the FCC.

License HolderDUMSER JR, JOHN M

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationHARVARD, MA

Grant DateApr 28, 1997

Expiration DateFeb 15, 2006

Cancellation DateFeb 16, 2008

Available for ApplicationsFeb 16, 2008

AA1SD is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by DUMSER JR, JOHN M in HARVARD, MA. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by DAVIS, SEAN on Mar 23, 2021. AA1SD has 1 recorded FCC license history event.

CW & Voice Analysis

Morse Code

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

CW Weight: 29 units(Light (fast to send))

Voice Phonetics

Alpha Alpha One Sierra Delta

Readability: 7.5/10(High readability)

This callsign is available now

Requires General license or higher to apply for this callsign format (2x2).

License History

License ExpiredFeb 16, 2008

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

DAVIS, SEANFiled Mar 23, 2021
Not awardedFCC ↗
DE LURGIO II, STEPHEN AFiled Nov 7, 2016
Not awardedFCC ↗

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FCC data as of Sep 4, 2026

AA1SD FCC Vanity Status: 2 Competing Applications & History