🕒 FCC license data updated today 8:30 am CDT (FCC files through Oct 1, 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
KO4OSB HAM
✅
Available for a vanity request — free since Sep 22, 2026.
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 Sep 22, 2026
Previous holder: Frederick J Stacey
Held KO4OSB Mar 24, 2021 → Sep 21, 2024
· first licensed Mar 24, 2021 as KO4OSB
· 3 licenses · FRN 0030170930
K4FJS
Active
Amateur Extra · vanity
Sep 19, 2026 → expires Sep 19, 2036
Licensee Frederick J Stacey
Address 734 Gid Brown Hollow Rd Washington, VA 22747
38.7272, -78.2297 (street) · Grid
FM08vr · CQ 5 · ITU 8 ·
map ↗
FRN 0030170930
Previous call N2FJS (General)
Last granted Sep 19, 2026
Effective Sep 19, 2026
Last action Sep 19, 2026
FCC actions (2)
Sep 19, 2026 — Vanity call sign granted VANGRT Sep 19, 2026 — License issued LIISS
N2FJS
Canceled
Amateur Extra · vanity
Sep 21, 2024 → Sep 19, 2026 (canceled)
Licensee Frederick J Stacey
Address 734 Gid Brown Hollow Rd Washington, VA 22747
38.7272, -78.2297 (street) · Grid
FM08vr · CQ 5 · ITU 8 ·
map ↗
FRN 0030170930
Previous call KO4OSB (General)
Last granted Sep 21, 2024
Effective Aug 4, 2025
Last action Sep 19, 2026
FCC actions (4)
Sep 19, 2026 — License canceled LICAN Aug 4, 2025 — License modified LIMOD Sep 21, 2024 — Vanity call sign granted VANGRT Sep 21, 2024 — License issued LIISS
KO4OSB
Canceled
General
Mar 24, 2021 → Sep 21, 2024 (canceled)
Licensee Frederick J Stacey
Address 734 Gid Brown Hollow Rd Washington, VA 22747
38.7272, -78.2297 (street) · Grid
FM08vr · CQ 5 · ITU 8 ·
map ↗
FRN 0030170930
Last granted Mar 24, 2021
Effective Jun 25, 2024
Last action Sep 21, 2024
FCC actions (5)
Sep 21, 2024 — License canceled LICAN Jun 25, 2024 — License modified LIMOD Mar 26, 2021 — Administrative update LIAUA Mar 24, 2021 — License issued LIISS Mar 24, 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 → Sep 27, 2026 · 22 snapshots · as KO4OSB
Frederick J Stacey
734 Gid Brown Hollow Rd, Washington, VA 22747
38.7272, -78.2297 (street) · Grid
FM08vr · CQ 5 · ITU 8 ·
map ↗
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KO4OSB in the last 24 hours. They show up here within seconds of KO4OSB beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.
Data: FCC Universal Licensing System (amateur & GMRS), NetLogger and more · site status
n9tpb.com · 73 de N9TPB