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/AB5O

← Back to results

AB5O

Active2x1District 5

Competitive callsign — 5 applications filed with the FCC.

License HolderAMUSO, WILLIAM J

License ClassAdvanced

Min. Class RequiredAmateur Extra

LocationSTEPHENTOWN, NY

Grant DateNov 12, 2020

Expiration DateFeb 9, 2031

AB5O is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by AMUSO, WILLIAM J in STEPHENTOWN, NY. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by BRUMBAUGH, DONALD K on Jul 9, 2018. AB5O has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 24 units(Light (fast to send))

Voice Phonetics

Alpha Bravo Five Oscar

Readability: 8.5/10(High readability)

License History

License RenewedNov 12, 2020
License RenewedNov 30, 2010
License IssuedFeb 9, 2001
License ExpiredJul 20, 2000

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

BRUMBAUGH, DONALD KFiled Jul 9, 2018
Not awardedFCC ↗
GOODEN, GARY WFiled Jan 22, 2001
Not awardedFCC ↗
LENHARD, JOHN AFiled Jan 22, 2001
Not awardedFCC ↗
BOSBACH, STEPHEN RFiled Jun 28, 2000

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← AB5N AB5P →

FCC data as of Sep 3, 2026

Not awarded

GRIFFITH JR, STEPHEN MFiled Jun 28, 2000

Not awardedFCC ↗

AB5O FCC Vanity Status: 5 Competing Applications & History