N9TPB FCC License Search

🕒 FCC license data updated today 9:42 am CDT (FCC files through Sep 30, 2026) · next update tomorrow 9:15 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

K3OLF HAM

✅ Available for a vanity request — free since Mar 1, 2022.

1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it. No pending applications list it.

📬 QSL: not on LoTW · eQSL AG member

Not currently held · 1 holder on record · available since Mar 1, 2022

Previous holder: David R Carlson Sr

Held K3OLF May 21, 2013 → Feb 28, 2020 · first licensed Apr 4, 2013 as KC3AJA · 3 licenses · FRN 0022576235

K4RRY Active General · vanity Feb 28, 2020 → expires Feb 28, 2030

Licensee
David R Carlson Sr

Address
PO Box 29053
465 Lawndale drive
Gaston, SC 29170
33.8561, -81.0649 (street) · Grid EM93lu · CQ 5 · ITU 8 · map ↗

FRN
0022576235

Previous call
K3OLF (Technician)

Last granted
Feb 28, 2020

Effective
Feb 28, 2020

Last action
Feb 28, 2020
FCC actions (2)
- Feb 28, 2020 — Vanity call sign granted VANGRT
- Feb 28, 2020 — License issued LIISS
📦 Moved: Butler, PA → Gaston, SC

K3OLF Canceled General · vanity May 21, 2013 → Feb 28, 2020 (canceled)

Licensee
David R Carlson Sr

Address
PO Box 29053
465 Lawndale drive
Gaston, SC 29170
33.8561, -81.0649 (street) · Grid EM93lu · CQ 5 · ITU 8 · map ↗

FRN
0022576235

Previous call
KC3AJA (Technician)

Last granted
May 21, 2013

Effective
Nov 7, 2018

Last action
Feb 28, 2020
FCC actions (5)
- Feb 28, 2020 — License canceled LICAN
- Nov 7, 2018 — Administrative update LIAUA
- Sep 30, 2014 — Administrative update LIAUA
- May 21, 2013 — Vanity call sign granted VANGRT
- May 21, 2013 — License issued LIISS
KC3AJA Canceled General Apr 4, 2013 → May 21, 2013 (canceled)

Licensee
David R Carlson Sr

Address
218 Baumgart Ln
Butler, PA 16001
40.9100, -79.9452 (ZIP center) · Grid FN00av · CQ 5 · ITU 8 · map ↗

FRN
0022576235

Last granted
Apr 4, 2013

Effective
Apr 29, 2013

Last action
May 21, 2013
FCC actions (4)
- May 21, 2013 — License canceled LICAN
- Apr 29, 2013 — License modified LIMOD
- Apr 4, 2013 — License issued LIISS
- Apr 4, 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 Jan 22, 2019 → Sep 27, 2026 · 26 snapshots · as K3OLF
David R Carlson Sr
PO Box 29053
465 Lawndale drive, Gaston, SC 29170
33.8561, -81.0649 (street) · Grid EM93lu · CQ 5 · ITU 8 · map ↗
Seen Apr 12, 2013 → Sep 27, 2026 · 42 snapshots · as KC3AJA
David R Carlson Sr
218 Baumgart Ln, Butler, PA 16001
40.9100, -79.9452 (ZIP center) · Grid FN00av · CQ 5 · ITU 8 · map ↗
Seen Mar 28, 2015 → Sep 3, 2018 · 21 snapshots · as K3OLF
David R Carlson Sr
215 coronado road, west columbia, SC 29170
33.9391, -81.1446 (ZIP center) · Grid EM93kw · CQ 5 · ITU 8 · map ↗

Others requesting K3OLF

1 application listed K3OLF as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
May 3, 2013	May 21, 2013	KC3AJA · David R Carlson Sr · Butler, PA	1	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for K3OLF in the last 24 hours. They show up here within seconds of K3OLF beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.