N9TPB FCC License Search

🕒 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

KJ6FLU HAM

✅ Available for a vanity request — free since Apr 20, 2013.

2x3 call: any licensee can request it. No pending applications list it.

📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH

Not currently held · 1 holder on record · available since Apr 20, 2013

Previous holder: David T Zapf

Held KJ6FLU Feb 24, 2010 → Apr 19, 2011 · first licensed Feb 24, 2010 as KJ6FLU · 2 licenses · FRN 0019570704

WQ6U Active Amateur Extra · vanity Apr 19, 2011 → expires Apr 19, 2031

Licensee
David T Zapf

Address
Attn: Expiration Date 04/19/2031
6335 Mt Ainsworth Ct
San Diego, CA 92111
32.8148, -117.1753 (street) · Grid DM12jt · CQ 3 · ITU 6 · map ↗

FRN
0019570704

Previous call
KJ6FLU (General)

Last granted
Jan 26, 2021

Effective
Dec 3, 2022

Last action
Dec 3, 2022
FCC actions (7)
- Dec 3, 2022 — Administrative update LIAUA
- Jan 26, 2021 — License renewed LIREN
- Jan 12, 2021 — Administrative update LIAUA
- Jun 10, 2011 — Administrative update LIAUA
- Jun 10, 2011 — Administrative update LIAUA
- Apr 19, 2011 — Vanity call sign granted VANGRT
- Apr 19, 2011 — License issued LIISS
KJ6FLU Canceled Amateur Extra Feb 24, 2010 → Apr 19, 2011 (canceled)

Licensee
David T Zapf

Address
6235 Mt Ainsworth Ct
San Diego, CA 92111
32.8065, -117.1690 (ZIP center) · Grid DM12jt · CQ 3 · ITU 6 · map ↗

FRN
0019570704

Last granted
Feb 24, 2010

Effective
Mar 28, 2011

Last action
Apr 19, 2011
FCC actions (5)
- Apr 19, 2011 — License canceled LICAN
- Mar 28, 2011 — License modified LIMOD
- Apr 19, 2010 — License modified LIMOD
- Feb 24, 2010 — License issued LIISS
- Feb 24, 2010 — 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 17, 2011 → Oct 4, 2026 · 46 snapshots · as KJ6FLU
David T Zapf
6235 Mt Ainsworth Ct, San Diego, CA 92111
32.8065, -117.1690 (ZIP center) · Grid DM12jt · CQ 3 · ITU 6 · map ↗
Seen May 27, 2010 → Oct 4, 2026 · 47 snapshots · as WQ6U
David T Zapf
Attn: Expiration Date 04/19/2031
6335 Mt Ainsworth Ct, San Diego, CA 92111
32.8148, -117.1753 (street) · Grid DM12jt · CQ 3 · ITU 6 · map ↗

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KJ6FLU in the last 24 hours. They show up here within seconds of KJ6FLU beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.