N9TPB FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 13, 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, WI · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)

KC4DSR HAM

✅ Available for a vanity request — free since Mar 31, 2012.
2x3 call: any licensee can request it. No pending applications list it.
Last requested Feb 12, 2024 as choice 5: not granted, that applicant got KC4SWO instead.

📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH

Not currently held · 1 holder on record · available since Mar 31, 2012

Previous holder: WILLIAM H COOL JR

Held KC4DSR Nov 29, 1988 → Mar 30, 2010 · first licensed Nov 29, 1988 as KC4DSR · 1 license · FRN 0003204278

Callbook Records, 1993–2003
From the FCC amateur database as published on the QRZ! callsign CD-ROMs, 1993–2003, before and alongside the FCC's online records (which start in 1999). "Seen" dates are the first and last disc showing that record; the issue date is the FCC's, so it can be a renewal of an even older license.
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

Earlier Holders

KC4DSR in the 1993–2003 Callbooks
From the FCC amateur database as published on the QRZ! callsign CD-ROMs, 1993–2003, before and alongside the FCC's online records (which start in 1999). "Seen" dates are the first and last disc showing that record; the issue date is the FCC's, so it can be a renewal of an even older license.
KC4DSR in the Printed Callbooks, 1909–1997
From scanned copies of the printed callbooks (government lists from 1913, then the Radio Amateur Callbook to 1997), read by OCR, so names and streets can carry typos. Each line is one or more editions in a row showing the same name at the same address.

Others Requesting KC4DSR

1 application listed KC4DSR as a choice, newest first.

FiledAwardApplicantChoice #KC4DSRResult
Feb 12, 2024 Mar 1, 2024 KQ4OJL · David J Swoboda · Falls Church, VA 5Not granted They got KC4SWO (choice 1)

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for KC4DSR in the last 24 hours. They show up here within seconds of KC4DSR beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.