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, WIKO4UBJ HAM
✅ Available for a vanity request — free since Feb 16, 2024.
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 Feb 16, 2024
Previous holder: Donald J Mikkelsen
Held KO4UBJ Oct 15, 2021 → Feb 15, 2022 · first licensed Oct 15, 2021 as KO4UBJ · 3 licenses · FRN 0030855050
-
- Licensee
- Donald J Mikkelsen
- Address
- 13105 Bramblewood Lane, Herndon, VA 20171
Herndon, VA 20171
- FRN
- 0030855050
- Previous call
- KY4MV (General)
- Last granted
- Aug 21, 2026
- Effective
- Aug 21, 2026
- Last action
- Aug 21, 2026
FCC actions (2)
- Aug 21, 2026 — Vanity call sign granted VANGRT
- Aug 21, 2026 — License issued LIISS
-
- Licensee
- Donald J Mikkelsen
- Address
- 13105 Bramblewood Lane, Herndon, VA 20171
Herndon, VA 20171
- FRN
- 0030855050
- Previous call
- KO4UBJ (General)
- Last granted
- Oct 15, 2021
- Effective
- Feb 15, 2022
- Last action
- Aug 21, 2026
FCC actions (3)
- Aug 21, 2026 — License canceled LICAN
- Feb 15, 2022 — Systematic call sign granted SYSGRT
- Feb 15, 2022 — License issued LIISS
-
- Licensee
- Donald J Mikkelsen
- Address
- 13105 Bramblewood Lane, Herndon, VA 20171
Herndon, VA 20171
- FRN
- 0030855050
- Last granted
- Oct 15, 2021
- Effective
- Feb 11, 2022
- Last action
- Feb 15, 2022
FCC actions (5)
- Feb 15, 2022 — License canceled LICAN
- Feb 11, 2022 — License modified LIMOD
- Dec 8, 2021 — License modified LIMOD
- Oct 15, 2021 — License issued LIISS
- Oct 15, 2021 — 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 · 28 snapshots · as KO4UBJ
Donald J Mikkelsen
13105 Bramblewood Lane, Herndon, VA 20171, Herndon, VA 20171
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KO4UBJ in the last 24 hours. They show up here within seconds of KO4UBJ beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.