N9TPB FCC License Search

🕒 FCC license data updated today 8:30 am CDT (FCC files through Oct 1, 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

KA1SO HAM

✅ Available for a vanity request — free since Dec 5, 2002.

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 Dec 5, 2002

Previous holder: PAUL N DUFFY

Held KA1SO Dec 4, 1990 → Dec 4, 2000 · first licensed Dec 4, 1990 as KA1SO · 1 license · no FRN on file (pre-2001 records)

KA1SO Expired Advanced Dec 4, 1990 → Dec 4, 2000 (expired)

Licensee
PAUL N DUFFY

Address
RFD 2 BOX 3000
CARIBOU, ME 04736
46.9115, -68.0292 (ZIP center) · Grid FN56xv · CQ 5 · ITU 8 · map ↗

Previous call
KA1BVN (General)

Last granted
Dec 4, 1990

Effective
Dec 4, 1990

Last action
Dec 5, 2002
FCC actions (1)
- Dec 5, 2002 — 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 → Sep 27, 2026 · 47 snapshots · as KA1SO
PAUL N DUFFY
RFD 2 BOX 3000, CARIBOU, ME 04736
46.9115, -68.0292 (ZIP center) · Grid FN56xv · CQ 5 · ITU 8 · map ↗

Others requesting KA1SO

1 application listed KA1SO as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Feb 26, 2015	Mar 16, 2015	W7ABO · VICTOR R HEWETT · Dover-Foxcroft, ME	2	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KA1SO in the last 24 hours. They show up here within seconds of KA1SO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.