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

K4MMU HAM

✅ Available for a vanity request — free since Jun 11, 2019.

1x3 call: Technician, General, Advanced and Amateur Extra licensees 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 Jun 11, 2019

Previous holder: WALTER WITKO

Held K4MMU May 7, 2007 → Jun 10, 2017 · first licensed May 7, 2007 as K4MMU · 1 license · FRN 0016450447

K4MMU Expired General May 7, 2007 → Jun 10, 2017 (expired)

Licensee
WALTER WITKO

Address
2307 E H POUNDS DR
OCOEE, FL 34761
28.5786, -81.5341 (ZIP center) · Grid EL98fn · CQ 5 · ITU 8 · map ↗

FRN
0016450447

Last granted
May 7, 2007

Effective
May 7, 2007

Last action
Jun 11, 2019
FCC actions (3)
- Jun 11, 2019 — License expired LIEXP
- May 7, 2007 — License renewed LIREN
- May 7, 2007 — FCC action LITIN

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 K4MMU
WALTER WITKO
2307 E H POUNDS DR, OCOEE, FL 34761
28.5786, -81.5341 (ZIP center) · Grid EL98fn · CQ 5 · ITU 8 · map ↗

Others requesting K4MMU

2 applications listed K4MMU as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
May 17, 2021	Jun 4, 2021	N4OOD · Felix N Igbedior · woodbridge, VA	2	Granted
Sep 6, 2019	Sep 24, 2019	W3RBX · John R Black · Dunedin, FL	7	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for K4MMU in the last 24 hours. They show up here within seconds of K4MMU beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.