N9TPB FCC License Search
🕒 FCC license data updated yesterday 6:02 am CDT (FCC files through Oct 9, 2026) · next update today 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)

KR4HDV HAM

⏳ Not available yet — opens for vanity requests Dec 24, 2027, two years after the license was canceled (Dec 23, 2025).
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

Previous holder: Lois E Coltrane Jr

Held KR4HDV Nov 21, 2025 → Dec 23, 2025 · first licensed Mar 19, 1985 as WA4UNG · 2 licenses · FRN 0037581170
📖 In the printed callbooks since 1965 as WA4UNG, before the FCC's online records

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.

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for KR4HDV in the last 24 hours. They show up here within seconds of KR4HDV beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.