🕒 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
KB3JDH HAM
✅
Available for a vanity request — free since Mar 28, 2011.
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
· 2 holders on record
· available since Mar 28, 2011
Previous holder: J David Holloway
Held KB3JDH Oct 23, 2007 → Mar 27, 2009
· first licensed Oct 4, 2007 as KB3PUL
· 3 licenses · FRN 0016988354
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen May 27, 2010 → Oct 4, 2026 · 47 snapshots · as W3JDH
J David Holloway
217 Ocean Parkway, Berlin, MD 21811
38.3965, -75.1613 (street) · Grid
FM28kj · CQ 5 · ITU 8 ·
map ↗
Seen May 27, 2010 → Oct 4, 2026 · 94 snapshots · as KB3PUL
J David Holloway
816 South Caln Rd, Coatesville, PA 19320
39.9630, -75.8320 (ZIP center) · Grid
FM29cx · CQ 5 · ITU 8 ·
map ↗
Previous holder: Michael J Markowski
Held KB3JDH Jan 27, 2003 → Mar 19, 2003
· first licensed Jan 27, 2003 as KB3JAL
· 3 licenses · FRN 0008328536
AB3AP
Active
Amateur Extra
Mar 19, 2003 → expires Jan 27, 2033
Licensee Michael J Markowski
Address 17 Sullivan Chase Dr Avondale, PA 19311
39.8053, -75.7925 (street) · Grid
FM29ct · CQ 5 · ITU 8 ·
map ↗
FRN 0008328536
Previous call KB3JDH (General)
Last granted Nov 1, 2022
Effective Nov 1, 2022
Last action Nov 1, 2022
FCC actions (4)
Nov 1, 2022 — License renewed LIREN Oct 31, 2012 — License renewed LIREN Mar 19, 2003 — Systematic call sign granted SYSGRT Mar 19, 2003 — License issued LIISS
KB3JDH
Canceled
Amateur Extra
Jan 27, 2003 → Mar 19, 2003 (canceled)
Licensee Michael J Markowski
Address 17 Sullivan Chase Dr Avondale, PA 19311
39.8053, -75.7925 (street) · Grid
FM29ct · CQ 5 · ITU 8 ·
map ↗
FRN 0008328536
Previous call KB3JAL (General)
Last granted Jan 27, 2003
Effective Feb 19, 2003
Last action Mar 19, 2003
FCC actions (3)
Mar 19, 2003 — License canceled LICAN Feb 19, 2003 — Systematic call sign granted SYSGRT Feb 19, 2003 — License issued LIISS
KB3JAL
Canceled
General
Jan 27, 2003 → Feb 19, 2003 (canceled)
Licensee Michael J Markowski
Address 17 Sullivan Chase Dr Avondale, PA 19311
39.8053, -75.7925 (street) · Grid
FM29ct · CQ 5 · ITU 8 ·
map ↗
FRN 0008328536
Last granted Jan 27, 2003
Effective Jan 27, 2003
Last action Feb 19, 2003
FCC actions (2)
Feb 19, 2003 — License canceled LICAN Jan 27, 2003 — License issued LIISS
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 · 144 snapshots · as KB3JAL
Michael J Markowski
17 Sullivan Chase Dr, Avondale, PA 19311
39.8053, -75.7925 (street) · Grid
FM29ct · CQ 5 · ITU 8 ·
map ↗
Others requesting KB3JDH
1 application listed KB3JDH as a choice, newest first.
Filed Award Applicant Choice # Status
Oct 5, 2007
Oct 23, 2007
KB3PUL · J David Holloway · Coatesville, PA
1 Granted
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KB3JDH in the last 24 hours. They show up here within seconds of KB3JDH 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