🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 2026) · next update tomorrow 6:00 am CDT
Ask: HAMs within 5 miles of N9TPB · Extra class operators in Madison, WI · or try N9TPB · K9* wildcards · Smith, John · 0004797601 (FRN) · 53703 · Madison, WI
AA4ZX HAM
✅
Available for a vanity request — free since Mar 6, 2026.
2x2 call: only Amateur Extra licensees can request it.
No pending applications list it.
📬 QSL:
LoTW user · last upload May 9, 2018
· eQSL AG member
· QRZ · HamQTH
Not currently held
· 2 holders on record
· available since Mar 6, 2026
Previous holder: David C Williamson
Held AA4ZX Jan 31, 2014 → Mar 5, 2024
· first licensed Apr 17, 2013 as AC8NU
· 2 licenses · FRN 0019083260
AA4ZX
Expired
Amateur Extra · vanity
Jan 31, 2014 → Mar 5, 2024 (expired)
Licensee David C Williamson
Address Rr 1 Box 153-8 Elkins, WV 26241
38.9163, -79.7922 (ZIP center) · Grid
FM08cv · CQ 5 · ITU 8 ·
map ↗
FRN 0019083260
Previous call AC8NU
Last granted Jan 31, 2014
Effective Jan 31, 2014
Last action Mar 7, 2026
FCC actions (3)
Mar 7, 2026 — License expired LIEXP Jan 31, 2014 — Vanity call sign granted VANGRT Jan 31, 2014 — License issued LIISS
AC8NU
Canceled
Amateur Extra
Apr 17, 2013 → Jan 31, 2014 (canceled)
Licensee David C Williamson
Address Rr 1 Box 153-8 Elkins, WV 26241
38.9163, -79.7922 (ZIP center) · Grid
FM08cv · CQ 5 · ITU 8 ·
map ↗
FRN 0019083260
Last granted Apr 17, 2013
Effective Apr 17, 2013
Last action Jan 31, 2014
FCC actions (3)
Jan 31, 2014 — License canceled LICAN Apr 17, 2013 — License issued LIISS Apr 17, 2013 — Systematic call sign granted SYSGRT
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Oct 22, 2013 → Oct 4, 2026 · 77 snapshots · as AC8NU
David C Williamson
Rr 1 Box 153-8, Elkins, WV 26241
38.9163, -79.7922 (ZIP center) · Grid
FM08cv · CQ 5 · ITU 8 ·
map ↗
Previous holder: DAVID C WILLIAMSON
Held AA4ZX Feb 25, 1998 → Feb 25, 2008
· first licensed Feb 25, 1998 as AA4ZX
· 1 license · no FRN on file (pre-2001 records)
AA4ZX
Expired
Amateur Extra
Feb 25, 1998 → Feb 25, 2008 (expired)
Licensee DAVID C WILLIAMSON
Address HC 68 GLADWIN RD BOX 42 BOWDEN, WV 26254
38.9622, -79.6301 (ZIP center) · Grid
FM08ex · CQ 5 · ITU 8 ·
map ↗
Last granted Feb 25, 1998
Effective Feb 25, 1998
Last action Feb 26, 2010
FCC actions (1)
Feb 26, 2010 — License expired LIEXP
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Nov 7, 2004 → Oct 4, 2026 · 48 snapshots · as AA4ZX
DAVID C WILLIAMSON
HC 68 GLADWIN RD BOX 42, BOWDEN, WV 26254
38.9622, -79.6301 (ZIP center) · Grid
FM08ex · CQ 5 · ITU 8 ·
map ↗
Others requesting AA4ZX
3 applications listed AA4ZX as a choice, newest first.
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for AA4ZX in the last 24 hours. They show up here within seconds of AA4ZX beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.
Data: FCC Universal Licensing System (amateur & GMRS), NetLogger and more · site status
n9tpb.com · 73 de N9TPB