🕒 FCC license data updated today 9:42 am CDT (FCC files through Sep 30, 2026) · next update tomorrow 9:15 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
AI4MK
✅
Available for a vanity request — free since Apr 16, 2008.
2x2 call: only Amateur Extra licensees can request it.
No pending applications list it.
📬 QSL:
LoTW user , last upload Jan 23, 2006
· not eQSL AG
Not currently held
· 1 holder on record
· available since Apr 16, 2008
Previous holder: Christopher G Plumblee
Held AI4MK Apr 27, 1999 → Apr 15, 2006
· first licensed Apr 27, 1999 as KG4CZU
· 4 licenses · FRN 0003987922
W4WF
Active
Amateur Extra · vanity
Nov 24, 2018 → expires Nov 24, 2028
Licensee Christopher G Plumblee
Address 4719 Fontana Street Orlando, FL 32807
28.5322, -81.3273 (street) · Grid
EL98im · CQ 5 · ITU 8 ·
map ↗
FRN 0003987922
Previous call WF3C (Technician)
Last granted Nov 24, 2018
Effective Nov 24, 2018
Last action Nov 24, 2018
FCC actions (2)
Nov 24, 2018 — Vanity call sign granted VANGRT Nov 24, 2018 — License issued LIISS
WF3C
Canceled
Amateur Extra · vanity
Apr 15, 2006 → Nov 24, 2018 (canceled)
Licensee Christopher G Plumblee
Address 4719 Fontana Street Orlando, FL 32807
28.5322, -81.3273 (street) · Grid
EL98im · CQ 5 · ITU 8 ·
map ↗
FRN 0003987922
Previous call AI4MK (Technician)
Last granted Mar 25, 2016
Effective Mar 25, 2016
Last action Nov 24, 2018
FCC actions (6)
Nov 24, 2018 — License canceled LICAN Mar 25, 2016 — License renewed LIREN Dec 18, 2012 — FCC action LIAUA Oct 6, 2006 — FCC action LIAUA Apr 15, 2006 — Vanity call sign granted VANGRT Apr 15, 2006 — License issued LIISS
AI4MK
Canceled
Amateur Extra
Apr 27, 1999 → Apr 15, 2006 (canceled)
Licensee Christopher G Plumblee
Address 831 Lowell Blvd Apt C-27 Orlando, FL 32803
28.5556, -81.3484 (ZIP center) · Grid
EL98hn · CQ 5 · ITU 8 ·
map ↗
FRN 0003987922
Previous call KG4CZU (Technician)
Last granted Apr 27, 1999
Effective Sep 30, 2005
Last action Apr 15, 2006
FCC actions (3)
Apr 15, 2006 — License canceled LICAN Sep 30, 2005 — Systematic call sign granted SYSGRT Sep 30, 2005 — License issued LIISS
KG4CZU
Canceled
Amateur Extra
Apr 27, 1999 → Sep 30, 2005 (canceled)
Licensee Christopher G Plumblee
Address 831 Lowell Blvd Apt C-27 Orlando, FL 32803
28.5556, -81.3484 (ZIP center) · Grid
EL98hn · CQ 5 · ITU 8 ·
map ↗
FRN 0003987922
Last granted Apr 27, 1999
Effective Jul 15, 2005
Last action Sep 30, 2005
FCC actions (3)
Sep 30, 2005 — License canceled LICAN Jul 15, 2005 — FCC action LIAUA Jun 17, 2004 — FCC action LIAUA
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Feb 18, 2013 → Sep 27, 2026 · 55 snapshots · as WF3C
Christopher G Plumblee
4719 Fontana Street, Orlando, FL 32807
28.5322, -81.3273 (street) · Grid
EL98im · CQ 5 · ITU 8 ·
map ↗
Seen May 27, 2010 → Sep 27, 2026 · 92 snapshots · as KG4CZU
Christopher G Plumblee
831 Lowell Blvd Apt C-27, Orlando, FL 32803
28.5556, -81.3484 (ZIP center) · Grid
EL98hn · CQ 5 · ITU 8 ·
map ↗
Seen May 27, 2010 → Jul 26, 2012 · 5 snapshots · as WF3C
Christopher G Plumblee
2900 Pickfair St., Orlando, FL 32803
28.5556, -81.3484 (ZIP center) · Grid
EL98hn · CQ 5 · ITU 8 ·
map ↗
Seen Nov 7, 2004 · 1 snapshot · as KG4CZU
CHRISTOPHER G PLUMBLEE
3720 Marcy Ct., Wake Forest, NC 27587
35.9808, -78.5511 (ZIP center) · Grid
FM05rx · CQ 5 · ITU 8 ·
map ↗
Data: FCC Universal Licensing System, amateur service · refreshed nightly
n9tpb.com · 73 de N9TPB