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

AC0JL HAM

Amateur Extra class licensed since 2004 (22 yrs) AC0JL since 2007 · previously KC0TDS Boulder, CO

🔒 Not available — currently licensed, through Sep 29, 2034. If it isn't renewed, it opens for vanity requests Sep 30, 2036.

📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH

Currently held by ROBERT F T KRASSA · 1 holder on record

Current holder: ROBERT F T KRASSA

Held AC0JL Oct 2, 2007 → present · first licensed Sep 29, 2004 as KC0TDS · 2 licenses · FRN 0011587391

AC0JL Active Amateur Extra Oct 2, 2007 → expires Sep 29, 2034

Licensee
ROBERT F T KRASSA

Address
Attn: Robert F Krassa
PO Box 80306
PO Box 734
BOULDER, CO 80306

FRN
0011587391

Previous call
KC0TDS (General)

Last granted
Jul 16, 2024

Effective
Jul 16, 2024

Last action
Jul 16, 2024
FCC actions (4)
- Jul 16, 2024 — License renewed LIREN
- Jul 24, 2014 — License renewed LIREN
- Oct 2, 2007 — Systematic call sign granted SYSGRT
- Oct 2, 2007 — License issued LIISS
KC0TDS Canceled Amateur Extra Sep 29, 2004 → Oct 2, 2007 (canceled)

Licensee
Robert F T Krassa

Address
PO Box 734
Boulder, CO 80306

FRN
0011587391

Last granted
Sep 29, 2004

Effective
Oct 2, 2007

Last action
Oct 2, 2007
FCC actions (3)
- Oct 2, 2007 — License canceled LICAN
- Aug 23, 2007 — License modified LIMOD
- Sep 29, 2004 — License issued LIISS

Address history

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

Seen Sep 27, 2024 → Oct 4, 2026 · 10 snapshots · as AC0JL
ROBERT F T KRASSA
Attn: Robert F Krassa
PO Box 80306
PO Box 734, BOULDER, CO 80306
Seen Nov 7, 2004 → Oct 4, 2026 · 85 snapshots · as KC0TDS
Robert F T Krassa
PO Box 734
Boulder, CO 80306

Others requesting AC0JL

1 application listed AC0JL as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Nov 4, 2002	Nov 22, 2002	KC0OFT · RF Justice League · Omaha, NE	7	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for AC0JL in the last 24 hours. They show up here within seconds of AC0JL beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.