🕒 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, WI
KJ4CVR HAM
✅
Available for a vanity request — free since Dec 30, 2010.
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 Dec 30, 2010
Previous holder: Donald C Mertz Jr
Held KJ4CVR Mar 19, 2008 → Dec 29, 2008
· first licensed Mar 19, 2008 as KJ4CVR
· 3 licenses · FRN 0017570201
KJ4MZ
Active
Amateur Extra · vanity
Apr 16, 2010 → expires Apr 16, 2030
Licensee Donald C Mertz Jr
Address 4010 Monitor Drive Hampton, VA 23669
37.0087, -76.3508 (street) · Grid
FM17ta · CQ 5 · ITU 8 ·
map ↗
FRN 0017570201
Previous call KJ4IRG (General)
Last granted Feb 10, 2020
Effective Feb 10, 2020
Last action Feb 10, 2020
FCC actions (5)
Feb 10, 2020 — License renewed LIREN Dec 18, 2012 — Administrative update LIAUA Jun 23, 2012 — Administrative update LIAUA Apr 16, 2010 — Vanity call sign granted VANGRT Apr 16, 2010 — License issued LIISS
KJ4IRG
Canceled
Amateur Extra
Mar 19, 2008 → Apr 16, 2010 (canceled)
Licensee Donald C Mertz Jr
Address 4010 Monitor Dr Hampton, VA 23669
37.0507, -76.3393 (ZIP center) · Grid
FM17tb · CQ 5 · ITU 8 ·
map ↗
FRN 0017570201
Previous call KJ4CVR (General)
Last granted Mar 19, 2008
Effective Mar 22, 2010
Last action Apr 16, 2010
FCC actions (4)
Apr 16, 2010 — License canceled LICAN Mar 22, 2010 — License modified LIMOD Dec 29, 2008 — Systematic call sign granted SYSGRT Dec 29, 2008 — License issued LIISS
KJ4CVR
Canceled
General
Mar 19, 2008 → Dec 29, 2008 (canceled)
Licensee Donald C Mertz Jr
Address 4010 Monitor Dr Hampton, VA 23669
37.0507, -76.3393 (ZIP center) · Grid
FM17tb · CQ 5 · ITU 8 ·
map ↗
FRN 0017570201
Last granted Mar 19, 2008
Effective Dec 29, 2008
Last action Dec 29, 2008
FCC actions (3)
Dec 29, 2008 — License canceled LICAN Mar 19, 2008 — License issued LIISS Mar 19, 2008 — 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 Feb 18, 2013 → Oct 4, 2026 · 42 snapshots · as KJ4MZ
Donald C Mertz Jr
4010 Monitor Drive, Hampton, VA 23669
37.0087, -76.3508 (street) · Grid
FM17ta · CQ 5 · ITU 8 ·
map ↗
Seen May 27, 2010 → Oct 4, 2026 · 98 snapshots · as KJ4CVR
Donald C Mertz Jr
4010 Monitor Dr, Hampton, VA 23669
37.0507, -76.3393 (ZIP center) · Grid
FM17tb · CQ 5 · ITU 8 ·
map ↗
Seen Jul 26, 2012 · 1 snapshot · as KJ4MZ
Donald C Mertz Jr
157 Linden Avenue, Hampton, VA 23669
37.0507, -76.3393 (ZIP center) · Grid
FM17tb · CQ 5 · ITU 8 ·
map ↗
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KJ4CVR in the last 24 hours. They show up here within seconds of KJ4CVR beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.
Data: FCC Universal Licensing System (amateur & GMRS), NetLogger and more · site status
n9tpb.com · 73 de N9TPB