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, WIKO4AIB HAM
✅ Available for a vanity request — free since Jan 24, 2022.
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 Jan 24, 2022
Previous holder: Michael T McMahon
Held KO4AIB Nov 15, 2019 → Jan 23, 2020 · first licensed Nov 15, 2019 as KN4ZYQ · 3 licenses · FRN 0028955045
-
- Licensee
- Michael T McMahon
- Address
- 1003 Heron Ave
Fort Pierce, FL 34982
- FRN
- 0028955045
- Previous call
- KO4AIB (General)
- Last granted
- Nov 15, 2019
- Effective
- Jan 23, 2020
- Last action
- Jan 23, 2020
FCC actions (2)
- Jan 23, 2020 — Systematic call sign granted SYSGRT
- Jan 23, 2020 — License issued LIISS
-
- Licensee
- Michael T McMahon
- Address
- 1003 Heron Ave
Fort Pierce, FL 34982
- FRN
- 0028955045
- Previous call
- KN4ZYQ (General)
- Last granted
- Nov 15, 2019
- Effective
- Jan 23, 2020
- Last action
- Jan 23, 2020
FCC actions (3)
- Jan 23, 2020 — License canceled LICAN
- Nov 26, 2019 — Systematic call sign granted SYSGRT
- Nov 26, 2019 — License issued LIISS
-
- Licensee
- Michael T McMahon
- Address
- 1003 Heron Ave
Fort Pierce, FL 34982
- FRN
- 0028955045
- Last granted
- Nov 15, 2019
- Effective
- Nov 26, 2019
- Last action
- Nov 26, 2019
FCC actions (3)
- Nov 26, 2019 — License canceled LICAN
- Nov 15, 2019 — License issued LIISS
- Nov 15, 2019 — 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 · 39 snapshots · as KN4ZYQ
Michael T McMahon
1003 Heron Ave, Fort Pierce, FL 34982
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KO4AIB in the last 24 hours. They show up here within seconds of KO4AIB beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.