N9TPB
FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 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, WIKJ4MTM HAM
✅ Available for a vanity request — free since Dec 2, 2011.
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 2, 2011
Previous holder: Rudolf W Crisp
Held KJ4MTM Jun 15, 2009 → Dec 1, 2009 · first licensed Jun 15, 2009 as KJ4MTM · 3 licenses · FRN 0018866202
-
📦 Moved: Thornburg, VA → Inverness, FL
- Licensee
- Rudolf W Crisp
- Address
- 2615 TYLER ST
Inverness, FL 34453
- FRN
- 0018866202
- Previous call
- W3RWC (General)
- Last granted
- Nov 25, 2025
- Effective
- Nov 25, 2025
- Last action
- Nov 25, 2025
FCC actions (5)
- Nov 25, 2025 — Administrative update LIAUA
- Nov 25, 2025 — License renewed LIREN
- May 25, 2021 — Administrative update LIAUA
- Dec 15, 2015 — Vanity call sign granted VANGRT
- Dec 15, 2015 — License issued LIISS
-
📦 Moved: Fredericksburg, VA → Thornburg, VA
- Licensee
- Rudolf W Crisp
- Address
- PO Box 902
Thornburg, VA 22565
- FRN
- 0018866202
- Previous call
- KJ4MTM (General)
- Last granted
- Dec 1, 2009
- Effective
- Jan 8, 2013
- Last action
- Dec 15, 2015
FCC actions (5)
- Dec 15, 2015 — License canceled LICAN
- Jan 8, 2013 — Administrative update LIAUA
- Dec 21, 2009 — License modified LIMOD
- Dec 1, 2009 — Vanity call sign granted VANGRT
- Dec 1, 2009 — License issued LIISS
-
- Licensee
- RUDOLF W CRISP
- Address
- 527 PLEASANTS DR
FREDERICKSBURG, VA 22407
- FRN
- 0018866202
- Last granted
- Jun 15, 2009
- Effective
- Jul 15, 2009
- Last action
- Dec 1, 2009
FCC actions (4)
- Dec 1, 2009 — License canceled LICAN
- Jul 15, 2009 — License modified LIMOD
- Jun 15, 2009 — License issued LIISS
- Jun 15, 2009 — 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 Apr 16, 2022 → Oct 4, 2026 · 13 snapshots · as WB4RC
Rudolf W Crisp
2615 TYLER ST, Inverness, FL 34453 - Seen Feb 18, 2013 → Oct 4, 2026 · 42 snapshots · as W3RWC
Rudolf W Crisp
PO Box 902
Thornburg, VA 22565 - Seen May 27, 2010 → Oct 4, 2026 · 52 snapshots · as KJ4MTM
RUDOLF W CRISP
527 PLEASANTS DR, FREDERICKSBURG, VA 22407 - Seen Jan 14, 2016 → May 6, 2019 · 17 snapshots · as WB4RC
Rudolf W Crisp
527 Pleasants Dr., Fredericksburg, VA 22407
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KJ4MTM in the last 24 hours. They show up here within seconds of KJ4MTM beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.