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, WI

KF4RJA HAM

✅ Available for a vanity request — free since Apr 2, 2025.

2x3 call: any licensee can request it. No pending applications list it.

📬 QSL: LoTW user · last upload Oct 14, 2023 · not eQSL AG · QRZ · HamQTH

Not currently held · 2 holders on record · available since Apr 2, 2025

Previous holder: Robert J Achtenberg

Held KF4RJA Mar 5, 2022 → Apr 1, 2023 · first licensed May 17, 2021 as KO4QJK · 3 licenses · FRN 0030765226

AJ4RJ Active Amateur Extra · vanity Apr 1, 2023 → expires Apr 1, 2033

Licensee
Robert J Achtenberg

Address
3340 Trails End Rd NE
Roswell, GA 30075
34.0261, -84.4073 (street) · Grid EM74ta · CQ 5 · ITU 8 · map ↗

FRN
0030765226

Previous call
KF4RJA (General)

Last granted
Apr 1, 2023

Effective
Apr 1, 2023

Last action
Apr 1, 2023
FCC actions (2)
- Apr 1, 2023 — Vanity call sign granted VANGRT
- Apr 1, 2023 — License issued LIISS
KF4RJA Canceled Amateur Extra · vanity Mar 5, 2022 → Apr 1, 2023 (canceled)

Licensee
Robert J Achtenberg

Address
3340 Trails End Rd NE
Roswell, GA 30075
34.0261, -84.4073 (street) · Grid EM74ta · CQ 5 · ITU 8 · map ↗

FRN
0030765226

Previous call
KO4QJK (General)

Last granted
Mar 5, 2022

Effective
Mar 13, 2023

Last action
Apr 1, 2023
FCC actions (4)
- Apr 1, 2023 — License canceled LICAN
- Mar 13, 2023 — License modified LIMOD
- Mar 5, 2022 — Vanity call sign granted VANGRT
- Mar 5, 2022 — License issued LIISS
KO4QJK Canceled General May 17, 2021 → Mar 5, 2022 (canceled)

Licensee
Robert J Achtenberg

Address
3340 Trails End Rd
Roswell, GA 30075
34.0527, -84.3916 (ZIP center) · Grid EM74tb · CQ 5 · ITU 8 · map ↗

FRN
0030765226

Last granted
May 17, 2021

Effective
Feb 14, 2022

Last action
Mar 5, 2022
FCC actions (4)
- Mar 5, 2022 — License canceled LICAN
- Feb 14, 2022 — License modified LIMOD
- May 17, 2021 — License issued LIISS
- May 17, 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 · 13 snapshots · as KO4QJK
Robert J Achtenberg
3340 Trails End Rd, Roswell, GA 30075
34.0527, -84.3916 (ZIP center) · Grid EM74tb · CQ 5 · ITU 8 · map ↗
Seen Apr 16, 2022 → Oct 4, 2026 · 25 snapshots · as KF4RJA
Robert J Achtenberg
3340 Trails End Rd NE, Roswell, GA 30075
34.0261, -84.4073 (street) · Grid EM74ta · CQ 5 · ITU 8 · map ↗

Previous holder: THOMAS, JAMES M

Held KF4RJA → Dec 3, 1997 · first licensed as KF4RJA · 1 license · no FRN on file (pre-2001 records)

KF4RJA Canceled Club / other → Dec 3, 1997 (canceled)

Licensee
THOMAS, JAMES M

Address

Last granted

Effective

Last action

Address history

From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

Seen Nov 7, 2004 → Oct 4, 2026 · 48 snapshots · as KF4RJA
THOMAS, JAMES M

Others requesting KF4RJA

1 application listed KF4RJA as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Feb 15, 2022	Mar 5, 2022	KO4QJK · Robert J Achtenberg · Roswell, GA	16	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KF4RJA in the last 24 hours. They show up here within seconds of KF4RJA beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.