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, WIKO4REX HAM
Technician class
licensed since 2021 (5 yrs)
Mount Pleasant, SC
🔒 Not available — currently licensed, through Jun 14, 2031. If it isn't renewed, it opens for vanity requests Jun 15, 2033.
📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH
Currently held by Mattias Cederholm · 1 holder on record
Current holder: Mattias Cederholm
Held KO4REX Jun 14, 2021 → present · first licensed Jun 14, 2021 as KO4REX · 1 license · FRN 0031025638
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- Licensee
- Mattias Cederholm
- Address
- PO Box 431
Mount Pleasant, SC 29465
- FRN
- 0031025638
- Last granted
- Jun 14, 2021
- Effective
- Jul 24, 2021
- Last action
- Jul 24, 2021
FCC actions (3)
- Jul 24, 2021 — Administrative update LIAUA
- Jun 14, 2021 — License issued LIISS
- Jun 14, 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 KO4REX
Mattias Cederholm
PO Box 431
Mount Pleasant, SC 29465
Others requesting KO4REX
2 applications listed KO4REX as a choice, newest first.
| Filed | Award | Applicant | Choice # | Status |
|---|---|---|---|---|
| Aug 15, 2022 | Sep 2, 2022 | KQ4CMN · Rex N Maxfield · Tazewell, VA | 2 | Granted |
| Jun 7, 2021 | Jun 25, 2021 | KO4PHF · TYLER D BLANKENSHIP · SALISBURY, NC | 1 | Dismissed |
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KO4REX in the last 24 hours. They show up here within seconds of KO4REX beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.