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, WIKR4DIT HAM
⏳ Not available yet — opens for vanity requests May 10, 2027, two years after the license was canceled (May 9, 2025).
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
Previous holder: Jon Kaplan
Held KR4DIT Apr 19, 2025 → May 9, 2025 · first licensed Sep 13, 2011 as KC9URY · 7 licenses · FRN 0021101217
-
- Licensee
- Jon Kaplan
- Address
- Attn: Jon Kaplan
4031 Gulf Shore Blvd N, PH-3B
Naples, FL 34103-2605
- FRN
- 0021101217
- Previous call
- W0OG (General)
- Last granted
- Apr 10, 2026
- Effective
- Apr 10, 2026
- Last action
- Apr 10, 2026
FCC actions (2)
- Apr 10, 2026 — Vanity call sign granted VANGRT
- Apr 10, 2026 — License issued LIISS
-
- Licensee
- Jon Kaplan
- Address
- Attn: Jon Kaplan
4031 Gulf Shore Blvd N, PH-3B
Naples, FL 34103-2605
- FRN
- 0021101217
- Previous call
- K2UH (General)
- Last granted
- Feb 27, 2026
- Effective
- Feb 27, 2026
- Last action
- Apr 10, 2026
FCC actions (3)
- Apr 10, 2026 — License canceled LICAN
- Feb 27, 2026 — Vanity call sign granted VANGRT
- Feb 27, 2026 — License issued LIISS
-
- Licensee
- Jon Kaplan
- Address
- Attn: Jon Kaplan
4031 Gulf Shore Blvd N, PH-3B
Naples, FL 34103-2605
- FRN
- 0021101217
- Previous call
- K5OOO (General)
- Last granted
- Dec 9, 2025
- Effective
- Dec 9, 2025
- Last action
- Feb 27, 2026
FCC actions (3)
- Feb 27, 2026 — License canceled LICAN
- Dec 9, 2025 — Vanity call sign granted VANGRT
- Dec 9, 2025 — License issued LIISS
-
- Licensee
- Jon Kaplan
- Address
- 4031 Gulf Shore Blvd N
Naples, FL 34103-2605
- FRN
- 0021101217
- Previous call
- KR4DIT (General)
- Last granted
- May 9, 2025
- Effective
- Aug 12, 2025
- Last action
- Dec 9, 2025
FCC actions (5)
- Dec 9, 2025 — License canceled LICAN
- Aug 12, 2025 — License modified LIMOD
- May 15, 2025 — License modified LIMOD
- May 9, 2025 — Vanity call sign granted VANGRT
- May 9, 2025 — License issued LIISS
-
- Licensee
- Jon Kaplan
- Address
- 4031 Gulf Shore Blvd N
Naples, FL 34103-2605
- FRN
- 0021101217
- Last granted
- Apr 19, 2025
- Effective
- Apr 19, 2025
- Last action
- May 9, 2025
FCC actions (3)
- May 9, 2025 — License canceled LICAN
- Apr 19, 2025 — License issued LIISS
- Apr 19, 2025 — Systematic call sign granted SYSGRT
-
📦 Moved: Wilmette, IL → Naples, FL
- Licensee
- Jon Kaplan
- Address
- 4031 Gulf Shore Blvd North, PH-3F
Naples, FL 34103
- FRN
- 0021101217
- Previous call
- KC9URY
- Last granted
- Oct 4, 2011
- Effective
- Jul 22, 2014
- Last action
- Oct 5, 2023
FCC actions (4)
- Oct 5, 2023 — License expired LIEXP
- Jul 22, 2014 — Administrative update LIAUA
- Oct 4, 2011 — Vanity call sign granted VANGRT
- Oct 4, 2011 — License issued LIISS
-
- Licensee
- Jon Kaplan
- Address
- 310 Central Ave
Wilmette, IL 60091
- FRN
- 0021101217
- Last granted
- Sep 13, 2011
- Effective
- Sep 13, 2011
- Last action
- Oct 4, 2011
FCC actions (3)
- Oct 4, 2011 — License canceled LICAN
- Sep 13, 2011 — License issued LIISS
- Sep 13, 2011 — 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 Sep 27, 2026 → Oct 4, 2026 · 6 snapshots · as K2UH
Jon Kaplan
Attn: Jon Kaplan
4031 Gulf Shore Blvd N, PH-3B, Naples, FL 34103-2605 - Seen Apr 25, 2025 → Oct 4, 2026 · 9 snapshots · as KR4DIT
Jon Kaplan
4031 Gulf Shore Blvd N, Naples, FL 34103-2605 - Seen Mar 28, 2015 → Oct 4, 2026 · 36 snapshots · as K9III
Jon Kaplan
4031 Gulf Shore Blvd North, PH-3F, Naples, FL 34103 - Seen Oct 17, 2011 → Oct 4, 2026 · 56 snapshots · as KC9URY
Jon Kaplan
310 Central Ave, Wilmette, IL 60091
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KR4DIT in the last 24 hours. They show up here within seconds of KR4DIT beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.