N9TPB
FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 2026) · next update today 9:45 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, WIKF4MTT HAM
✅ Available for a vanity request — free since Dec 8, 2006.
2x3 call: any licensee 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 8, 2006
Previous holder: ROBERT A KLAHN
Held KF4MTT Nov 4, 1996 → Dec 7, 2004 · first licensed Nov 4, 1996 as KF4MTT · 3 licenses · FRN 0006019210
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📦 Moved: San Francisco, CA → Wendell, NC
- Licensee
- ROBERT A KLAHN
- Address
- 1621 Raven Falls Dr.
Wendell, NC 27591
- FRN
- 0006019210
- Previous call
- KJ6OGE (General)
- Last granted
- Jun 26, 2024
- Effective
- Nov 7, 2024
- Last action
- Nov 7, 2024
FCC actions (6)
- Nov 7, 2024 — Administrative update LIAUA
- Jun 26, 2024 — License renewed LIREN
- Jun 6, 2024 — Administrative update LIAUA
- Nov 20, 2018 — Administrative update LIAUA
- Sep 23, 2014 — Vanity call sign granted VANGRT
- Sep 23, 2014 — License issued LIISS
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📦 Moved: Mesa, AZ → San Francisco, CA
- Licensee
- ROBERT A KLAHN
- Address
- 550 BATTERY ST 1003
SAN FRANCISCO, CA 94111
- FRN
- 0006019210
- Last granted
- Apr 25, 2011
- Effective
- Jul 23, 2014
- Last action
- Sep 23, 2014
FCC actions (5)
- Sep 23, 2014 — License canceled LICAN
- Jul 23, 2014 — License modified LIMOD
- May 23, 2011 — License modified LIMOD
- Apr 25, 2011 — License issued LIISS
- Apr 25, 2011 — Systematic call sign granted SYSGRT
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- Licensee
- ROBERT A KLAHN
- Address
- 6745 E SUPERSTITION SPRINGS 1091
MESA, AZ 85206
- FRN
- 0006019210
- Previous call
- KE6OQV
- Last granted
- Nov 4, 1996
- Effective
- Jan 24, 2002
- Last action
- Dec 8, 2006
FCC actions (2)
- Dec 8, 2006 — License expired LIEXP
- Jan 24, 2002 — Administrative update LIAUA
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
- Seen Nov 28, 2024 → Oct 4, 2026 · 9 snapshots · as AD6I
ROBERT A KLAHN
1621 Raven Falls Dr., Wendell, NC 27591 - Seen Oct 17, 2011 → Oct 4, 2026 · 67 snapshots · as KJ6OGE
ROBERT A KLAHN
550 BATTERY ST 1003, SAN FRANCISCO, CA 94111 - Seen Nov 7, 2004 → Oct 4, 2026 · 48 snapshots · as KF4MTT
ROBERT A KLAHN
6745 E SUPERSTITION SPRINGS 1091, MESA, AZ 85206 - Seen Jul 1, 2024 → Sep 27, 2024 · 2 snapshots · as AD6I
ROBERT A KLAHN
1120 Bunker Ln Apt 106, Knightdale, NC 27545 - Seen Jan 22, 2019 → Apr 27, 2024 · 4 snapshots · as AD6I
ROBERT A KLAHN
101 Gloria Dr., San Rafael, CA 94901
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KF4MTT in the last 24 hours. They show up here within seconds of KF4MTT beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.