N9TPB FCC License Search

🕒 FCC license data updated today 6:02 am CDT (FCC files through Oct 2, 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

K1MMC HAM

✅ Available for a vanity request — free since Apr 10, 2025.

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 Apr 10, 2025

Previous holder: MARGARET M COFFMAN

Held K1MMC Apr 9, 2013 → Apr 9, 2023 · first licensed Jan 24, 2013 as KF5TNN · 2 licenses · FRN 0022374367

📦 Moved: Round Rock, TX → Sioux Falls, SD

K1MMC Expired Technician · vanity Apr 9, 2013 → Apr 9, 2023 (expired)

Licensee
MARGARET M COFFMAN

Address
3916 N Potsdam Ave #4010
Sioux Falls, SD 57104
43.6030, -96.7043 (ZIP center) · Grid EN13po · CQ 4 · ITU 7 · map ↗

FRN
0022374367

Previous call
KF5TNN

Last granted
Apr 9, 2013

Effective
Mar 29, 2017

Last action
Apr 10, 2025
FCC actions (5)
- Apr 10, 2025 — License expired LIEXP
- Mar 29, 2017 — Administrative update LIAUA
- Apr 19, 2016 — Administrative update LIAUA
- Apr 9, 2013 — Vanity call sign granted VANGRT
- Apr 9, 2013 — License issued LIISS
KF5TNN Canceled Technician Jan 24, 2013 → Apr 9, 2013 (canceled)

Licensee
MARGARET M COFFMAN

Address
1002 PARROT TRAIL
ROUND ROCK, TX 78681
30.5418, -97.7166 (ZIP center) · Grid EM10dn · CQ 4 · ITU 7 · map ↗

FRN
0022374367

Last granted
Jan 24, 2013

Effective
Jan 24, 2013

Last action
Apr 9, 2013
FCC actions (3)
- Apr 9, 2013 — License canceled LICAN
- Jan 24, 2013 — License issued LIISS
- Jan 24, 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 May 12, 2017 → Sep 27, 2026 · 20 snapshots · as K1MMC
MARGARET M COFFMAN
3916 N Potsdam Ave #4010, Sioux Falls, SD 57104
43.6030, -96.7043 (ZIP center) · Grid EN13po · CQ 4 · ITU 7 · map ↗
Seen Feb 18, 2013 → Sep 27, 2026 · 54 snapshots · as KF5TNN
MARGARET M COFFMAN
1002 PARROT TRAIL, ROUND ROCK, TX 78681
30.5418, -97.7166 (ZIP center) · Grid EM10dn · CQ 4 · ITU 7 · map ↗
Seen Jun 30, 2016 → Feb 15, 2017 · 5 snapshots · as K1MMC
MARGARET M COFFMAN
312 Stinegate Lane, Dripping Springs, TX 78620
30.2256, -98.1363 (ZIP center) · Grid EM00wf · CQ 4 · ITU 7 · map ↗

Others requesting K1MMC

2 applications listed K1MMC as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
May 1, 2025	May 19, 2025	KD3BDU · Mason Cho · Gaithersburg, MD	4	Granted
Mar 20, 2013	Apr 7, 2013	KF5TNN · MARGARET M COFFMAN · ROUND ROCK, TX	1	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for K1MMC in the last 24 hours. They show up here within seconds of K1MMC beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.