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

KB3BTF HAM

✅ Available for a vanity request — free since Jun 2, 2003.

2x3 call: any licensee can request it. No pending applications list it.

Not currently held · 1 holder on record · available since Jun 2, 2003

Previous holder: Charles A JOHNSON JR

Held KB3BTF May 1, 1997 → Jun 1, 2001 · first licensed May 1, 1997 as KB3BTF · 3 licenses · FRN 0004509782

K3CJ Active Amateur Extra · vanity May 4, 2007 → expires May 20, 2027

Licensee
Charles A JOHNSON JR

Address
Attn: Charles A Johnson Jr
1526 S Garnet St
PHILADELPHIA, PA 19146-4628
39.9325, -75.1768 (street) · Grid FM29jw · CQ 5 · ITU 8 · map ↗

FRN
0004509782

Previous call
WN3PDB (Advanced)

Last granted
May 11, 2017

Effective
Sep 22, 2020

Last action
Sep 22, 2020
FCC actions (6)
- Sep 22, 2020 — Administrative update LIAUA
- May 11, 2017 — License renewed LIREN
- May 10, 2011 — Administrative update LIAUA
- Jan 16, 2009 — Administrative update LIAUA
- May 7, 2007 — License renewed LIREN
- May 4, 2007 — FCC action ESCFRN
K3FI Active Club / other · vanity Jun 1, 2001 → expires Jun 1, 2031

Licensee
HOLMESBURG AMATEUR RADIO CLUB

Address
Attn: B. Peter TREML
3341 Sheffield Ave
Philadelphia, PA 19136
40.0430, -75.0361 (street) · Grid FN20lb · CQ 5 · ITU 8 · map ↗

FRN
0004509782

Previous call
KB3BTF

Trustee
K8PT

Last granted
May 12, 2021

Effective
Jul 29, 2024

Last action
Jul 29, 2024
FCC actions (6)
- Jul 29, 2024 — License modified LIMOD
- Sep 28, 2021 — License modified LIMOD
- May 12, 2021 — License renewed LIREN
- May 10, 2011 — License renewed LIREN
- Mar 29, 2010 — Administrative update LIAUA
- Jun 1, 2001 — License issued LIISS
KB3BTF Canceled Club / other May 1, 1997 → Jun 1, 2001 (canceled)

Licensee
HOLMESBURG AMATEUR RADIO CLUB

Address
PO Box 6253
PHILADELPHIA, PA 19136
40.0401, -75.0196 (ZIP center) · Grid FN20la · CQ 5 · ITU 8 · map ↗

FRN
0004509782

Trustee
K3CJ

Last granted
May 1, 1997

Effective
May 1, 1997

Last action
Jun 1, 2001
FCC actions (1)
- Jun 1, 2001 — License canceled LICAN

Address history

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

Seen Apr 16, 2022 → Sep 27, 2026 · 12 snapshots · as K3CJ
Charles A JOHNSON JR
Attn: Charles A Johnson Jr
1526 S Garnet St, PHILADELPHIA, PA 19146-4628
39.9325, -75.1768 (street) · Grid FM29jw · CQ 5 · ITU 8 · map ↗
Seen Apr 16, 2022 → Sep 27, 2026 · 12 snapshots · as K3FI
HOLMESBURG AMATEUR RADIO CLUB
Attn: B. Peter TREML
3341 Sheffield Ave, Philadelphia, PA 19136
40.0430, -75.0361 (street) · Grid FN20lb · CQ 5 · ITU 8 · map ↗
Seen Nov 7, 2004 → Sep 27, 2026 · 48 snapshots · as KB3BTF
HOLMESBURG AMATEUR RADIO CLUB
PO Box 6253
PHILADELPHIA, PA 19136
40.0401, -75.0196 (ZIP center) · Grid FN20la · CQ 5 · ITU 8 · map ↗
Seen May 27, 2010 → May 6, 2019 · 34 snapshots · as K3FI
HOLMESBURG AMATEUR RADIO CLUB
Attn: Charles A. Johnson Jr.
PO Box 7773
Philadelphia, PA 19101-7773
Seen Nov 7, 2004 → May 6, 2019 · 34 snapshots · as K3CJ
Charles A JOHNSON JR
Attn: Charles A Johnson Jr
PO Box 7773
PHILADELPHIA, PA 19101-7773
Seen May 27, 2010 · 1 snapshot · as K3CJ
C A JOHNSON JR
PO Box 7773
PHILADELPHIA, PA 19101-7773

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KB3BTF in the last 24 hours. They show up here within seconds of KB3BTF beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.