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

KM4CO HAM

✅ Available for a vanity request — free since Feb 28, 2010.

2x2 call: 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 Feb 28, 2010

Previous holder: PETER A BARTHELSON

Held KM4CO Feb 27, 1998 → Feb 27, 2008 · first licensed Feb 27, 1998 as KM4CO · 1 license · FRN 0013738364

KM4CO Expired Advanced Feb 27, 1998 → Feb 27, 2008 (expired)

Licensee
PETER A BARTHELSON

Address
14120 K SULLYFIELD CIRCLE
CHANTILLY, VA 20151
38.8972, -77.4439 (ZIP center) · Grid FM18gv · CQ 5 · ITU 8 · map ↗

FRN
0013738364

Last granted
Feb 27, 1998

Effective
Jun 17, 2006

Last action
Mar 2, 2010
FCC actions (3)
- Mar 2, 2010 — License expired LIEXP
- Jun 17, 2006 — Administrative update LIAUA
- Jul 11, 2005 — FCC action LTSFRN

Address history

From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

Seen May 27, 2010 → Oct 4, 2026 · 47 snapshots · as KM4CO
PETER A BARTHELSON
14120 K SULLYFIELD CIRCLE, CHANTILLY, VA 20151
38.8972, -77.4439 (ZIP center) · Grid FM18gv · CQ 5 · ITU 8 · map ↗
Seen Nov 7, 2004 · 1 snapshot · as KM4CO
PETER A BARTHELSON
3508 WINSTON PL, FAIRFAX, VA 22030
38.8372, -77.3405 (ZIP center) · Grid FM18hu · CQ 5 · ITU 8 · map ↗

Others requesting KM4CO

2 applications listed KM4CO as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Feb 16, 2018	Mar 6, 2018	KX4IS · Carlos R O Neill · Collierville, TN	4	Granted
May 16, 2016	Jun 3, 2016	KM4TSE · Gary D Burnett · Brierfield, AL	2	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KM4CO in the last 24 hours. They show up here within seconds of KM4CO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.