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
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HAMs within 5 miles of N9TPB · Extra class operators in Madison, WI · or try N9TPB · K9* wildcards · Smith, John · 0004797601 (FRN) · 53703 · Madison, WIWD9ABC HAM
✅ Available for a vanity request — free since Apr 23, 2013.
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 Apr 23, 2013
Previous holder: David I Callahan
Held WD9ABC Sep 5, 2009 → Apr 22, 2011 · first licensed Jul 6, 2009 as KJ6AVM · 3 licenses · FRN 0018839092
-
- Licensee
- David I Callahan
- Address
- 20711 HIllside Dr
Topanga, CA 90290
- FRN
- 0018839092
- Previous call
- WD9ABC (General)
- Last granted
- Apr 22, 2011
- Effective
- Apr 22, 2011
- Last action
- Apr 25, 2023
FCC actions (3)
- Apr 25, 2023 — License expired LIEXP
- Apr 22, 2011 — Vanity call sign granted VANGRT
- Apr 22, 2011 — License issued LIISS
-
- Licensee
- David I Callahan
- Address
- 20711 HIllside Dr
Topanga, CA 90290
- FRN
- 0018839092
- Previous call
- KJ6AVM (General)
- Last granted
- Sep 5, 2009
- Effective
- Jun 25, 2010
- Last action
- Apr 22, 2011
FCC actions (5)
- Apr 22, 2011 — License canceled LICAN
- Jun 25, 2010 — License modified LIMOD
- Jan 12, 2010 — License modified LIMOD
- Sep 5, 2009 — Vanity call sign granted VANGRT
- Sep 5, 2009 — License issued LIISS
-
- Licensee
- David I Callahan
- Address
- 20711 HIllside Dr
Topanga, CA 90290
- FRN
- 0018839092
- Last granted
- Jul 6, 2009
- Effective
- Jul 6, 2009
- Last action
- Sep 5, 2009
FCC actions (3)
- Sep 5, 2009 — License canceled LICAN
- Jul 6, 2009 — License issued LIISS
- Jul 6, 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 May 27, 2010 → Oct 4, 2026 · 140 snapshots · as KJ6AVM
David I Callahan
20711 HIllside Dr, Topanga, CA 90290
Others requesting WD9ABC
1 application listed WD9ABC as a choice, newest first.
| Filed | Award | Applicant | Choice # | Status |
|---|---|---|---|---|
| Aug 18, 2009 | Sep 5, 2009 | KJ6AVM · David I Callahan · Topanga, CA | 1 | Granted |
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for WD9ABC in the last 24 hours. They show up here within seconds of WD9ABC beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.