🕒 FCC license data updated today 8:30 am CDT (FCC files through Oct 1, 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
KB3MBL HAM
✅
Available for a vanity request — free since Apr 27, 2007.
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 Apr 27, 2007
Previous holder: William J Prettyman
Held KB3MBL Mar 23, 2005 → Apr 26, 2005
· first licensed Mar 23, 2005 as KB3MBL
· 3 licenses · FRN 0013143524
W3DR
Active
Amateur Extra · vanity
Jul 28, 2006 → expires Jul 28, 2036
Licensee William J Prettyman
Address Attn: William J. Prettyman 113 Millers Run Millsboro, DE 19966-2857
38.5939, -75.3072 (street) · Grid
FM28io · CQ 5 · ITU 8 ·
map ↗
FRN 0013143524
Previous call W3HRT (General)
Last granted May 12, 2026
Effective May 12, 2026
Last action May 12, 2026
FCC actions (5)
May 12, 2026 — License renewed LIREN May 6, 2025 — Administrative update LIAUA May 9, 2016 — License renewed LIREN Jul 28, 2006 — Vanity call sign granted VANGRT Jul 28, 2006 — License issued LIISS
W3HRT
Canceled
Amateur Extra · vanity
Apr 26, 2005 → Jul 28, 2006 (canceled)
Licensee William J Prettyman
Address 23581 Godwin School Rd Millsboro, DE 19966
38.5794, -75.2772 (ZIP center) · Grid
FM28in · CQ 5 · ITU 8 ·
map ↗
FRN 0013143524
Previous call KB3MBL (General)
Last granted Apr 26, 2005
Effective Jun 15, 2006
Last action Jul 28, 2006
FCC actions (4)
Jul 28, 2006 — License canceled LICAN Jun 15, 2006 — License modified LIMOD Apr 26, 2005 — Vanity call sign granted VANGRT Apr 26, 2005 — License issued LIISS
KB3MBL
Canceled
General
Mar 23, 2005 → Apr 26, 2005 (canceled)
Licensee William J Prettyman
Address 23581 Godwin School Rd Millsboro, DE 19966
38.5794, -75.2772 (ZIP center) · Grid
FM28in · CQ 5 · ITU 8 ·
map ↗
FRN 0013143524
Last granted Mar 23, 2005
Effective Apr 18, 2005
Last action Apr 26, 2005
FCC actions (4)
Apr 26, 2005 — License canceled LICAN Apr 18, 2005 — License modified LIMOD Mar 23, 2005 — License issued LIISS Mar 23, 2005 — 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 May 29, 2025 → Sep 27, 2026 · 3 snapshots · as W3DR
William J Prettyman
Attn: William J. Prettyman 113 Millers Run, Millsboro, DE 19966-2857
38.5939, -75.3072 (street) · Grid
FM28io · CQ 5 · ITU 8 ·
map ↗
Seen May 27, 2010 → Sep 27, 2026 · 135 snapshots · as KB3MBL
William J Prettyman
23581 Godwin School Rd, Millsboro, DE 19966
38.5794, -75.2772 (ZIP center) · Grid
FM28in · CQ 5 · ITU 8 ·
map ↗
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KB3MBL in the last 24 hours. They show up here within seconds of KB3MBL 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