N9TPB FCC License Search

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

AC3RS HAM

⏳ Not available yet — opens for vanity requests Sep 6, 2028, two years after the license was canceled (Sep 5, 2026).

2x2 call: only Amateur Extra licensees can request it. No pending applications list it.

Not currently held · 1 holder on record

Previous holder: Justin A Linn

Held AC3RS Apr 30, 2024 → Sep 5, 2026 · first licensed Jan 12, 2004 as KB3KQN · 3 licenses · FRN 0007361777

K3UF Active Amateur Extra · vanity Sep 5, 2026 → expires Sep 5, 2036

Licensee
Justin A Linn

Address
529 Jefferson Ave, Fl 1
Cheltenham, PA 19012
40.0670, -75.0952 (street) · Grid FN20kb · CQ 5 · ITU 8 · map ↗

FRN
0007361777

Previous call
AC3RS (General)

Last granted
Sep 5, 2026

Effective
Sep 5, 2026

Last action
Sep 5, 2026
FCC actions (2)
- Sep 5, 2026 — Vanity call sign granted VANGRT
- Sep 5, 2026 — License issued LIISS
AC3RS Canceled Amateur Extra Apr 30, 2024 → Sep 5, 2026 (canceled)

Licensee
Justin A Linn

Address
529 Jefferson Ave, Fl 1
Cheltenham, PA 19012
40.0670, -75.0952 (street) · Grid FN20kb · CQ 5 · ITU 8 · map ↗

FRN
0007361777

Previous call
KB3KQN (General)

Last granted
Apr 30, 2024

Effective
Aug 17, 2026

Last action
Sep 5, 2026
FCC actions (3)
- Sep 5, 2026 — License canceled LICAN
- Aug 17, 2026 — Systematic call sign granted SYSGRT
- Aug 17, 2026 — License issued LIISS
KB3KQN Canceled Amateur Extra Jan 12, 2004 → Aug 17, 2026 (canceled)

Licensee
Justin A Linn

Address
529 Jefferson Ave, Fl 1
Cheltenham, PA 19012
40.0670, -75.0952 (street) · Grid FN20kb · CQ 5 · ITU 8 · map ↗

FRN
0007361777

Last granted
Apr 30, 2024

Effective
Aug 17, 2026

Last action
Aug 17, 2026
FCC actions (6)
- Aug 17, 2026 — License canceled LICAN
- Aug 13, 2026 — License modified LIMOD
- Apr 30, 2024 — License renewed LIREN
- Apr 19, 2014 — License renewed LIREN
- Apr 7, 2006 — Administrative update LIAUA
- Jan 12, 2004 — License issued LIISS

Address history

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

Seen Jul 1, 2024 → Sep 27, 2026 · 12 snapshots · as KB3KQN
Justin A Linn
529 Jefferson Ave, Fl 1, Cheltenham, PA 19012
40.0670, -75.0952 (street) · Grid FN20kb · CQ 5 · ITU 8 · map ↗
Seen May 22, 2014 → Apr 27, 2024 · 26 snapshots · as KB3KQN
Justin A Linn
Attn: Justin Linn
529 Jefferson Ave 1st Floor, Cheltenham, PA 19012
40.0597, -75.1059 (ZIP center) · Grid FN20kb · CQ 5 · ITU 8 · map ↗
Seen May 27, 2010 → Mar 28, 2014 · 10 snapshots · as KB3KQN
Justin A Linn
1246 Elbridge Street, Philadelphia, PA 19111
40.0606, -75.0802 (ZIP center) · Grid FN20lb · CQ 5 · ITU 8 · map ↗
Seen Nov 7, 2004 · 1 snapshot · as KB3KQN
Justin A Linn
1864 Wakeling St, Philadelphia, PA 19124-2858
40.0173, -75.0953 (ZIP center) · Grid FN20ka · CQ 5 · ITU 8 · map ↗

Others requesting AC3RS

2 applications listed AC3RS as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
May 22, 2008	Jun 9, 2008	KB3RFG · Perkasie Contest Club · Perkasie, PA	7	Granted
Dec 11, 2003	Dec 29, 2003	N3ATN · RODGER A STIVISON · HOMER CITY, PA	7	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for AC3RS in the last 24 hours. They show up here within seconds of AC3RS beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.