N9TPB FCC License Search

🕒 FCC license data updated yesterday 9:45 am CDT · next update today 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

K4IWO HAM

✅ Available for a vanity request — free since Nov 22, 2009.

1x3 call: Technician, General, Advanced and Amateur Extra licensees 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 Nov 22, 2009

Previous holder: SILAS C GRINSTEAD JR

Held K4IWO Nov 21, 1997 → Nov 21, 2007 · first licensed Nov 21, 1997 as K4IWO · 1 license · no FRN on file (pre-2001 records)

K4IWO Expired General Nov 21, 1997 → Nov 21, 2007 (expired)

Licensee
SILAS C GRINSTEAD JR

Address
1225 NORTH M ST
LAKE WORTH, FL 33460-2252
26.6184, -80.0558 (ZIP center) · Grid EL96xo · CQ 5 · ITU 8 · map ↗

Last granted
Nov 21, 1997

Effective
Nov 21, 1997

Last action
Nov 24, 2009
FCC actions (1)
- Nov 24, 2009 — License expired LIEXP

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 K4IWO
SILAS C GRINSTEAD JR
1225 NORTH M ST, LAKE WORTH, FL 33460-2252
26.6184, -80.0558 (ZIP center) · Grid EL96xo · CQ 5 · ITU 8 · map ↗

Others requesting K4IWO

1 application listed K4IWO as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Apr 17, 2000	May 5, 2000	KG4HFC · George L Young III · Havelock, NC	4	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for K4IWO in the last 24 hours. They show up here within seconds of K4IWO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.