N9TPB FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 15, 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)

KG4MBU HAM

⏳ Not available yet — opens for vanity requests Mar 11, 2027, two years after the license was canceled (Mar 10, 2025).
2x3 call: any licensee can request it. No pending applications list it.

📬 QSL: LoTW user · last upload Mar 22, 2025 · not eQSL AG · QRZ · HamQTH

Not currently held · 1 holder on record

Previous holder: Brian M Collins

Held KG4MBU Feb 27, 2001 → Mar 10, 2025 · first licensed Apr 29, 1986 as KB6MQW · 2 licenses · FRN 0004626099
📖 In the printed callbooks since 1990 as KB6MQW, 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 KG4MBU in the last 24 hours. They show up here within seconds of KG4MBU beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.