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
KB3MTM
Not currently held
· 1 holder on record
· available since Apr 19, 2008
Previous holder: Prescott B Wintersteen Jr
Held KB3MTM Oct 31, 2005 → Apr 18, 2006
· first licensed Oct 31, 2005 as KB3MTM
· 2 licenses · FRN 0014207955
N3YP
Active
Amateur Extra · vanity
Apr 18, 2006 → expires Apr 18, 2036
Licensee Prescott B Wintersteen Jr
Address 304 Juniata Court Pittsburgh, PA 15208-2610
40.4501, -79.9106 (street) · Grid
FN00bk · CQ 5 · ITU 8 ·
map ↗
FRN 0014207955
Previous call KB3MTM (General)
Last granted Feb 11, 2026
Effective Feb 11, 2026
Last action Feb 11, 2026
FCC actions (4)
Feb 11, 2026 — License renewed LIREN Mar 31, 2016 — License renewed LIREN Apr 18, 2006 — Vanity call sign granted VANGRT Apr 18, 2006 — License issued LIISS
KB3MTM
Canceled
Amateur Extra
Oct 31, 2005 → Apr 18, 2006 (canceled)
Licensee Prescott B Wintersteen Jr
Address 304 Juniata Court Pittsburgh, PA 15208-2610
40.4501, -79.9106 (street) · Grid
FN00bk · CQ 5 · ITU 8 ·
map ↗
FRN 0014207955
Last granted Oct 31, 2005
Effective Mar 2, 2006
Last action Apr 18, 2006
FCC actions (5)
Apr 18, 2006 — License canceled LICAN Mar 2, 2006 — License modified LIMOD Dec 13, 2005 — License modified LIMOD Oct 31, 2005 — License issued LIISS Oct 31, 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 27, 2010 → Sep 27, 2026 · 92 snapshots · as KB3MTM
Prescott B Wintersteen Jr
304 Juniata Court, Pittsburgh, PA 15208-2610
40.4501, -79.9106 (street) · Grid
FN00bk · CQ 5 · ITU 8 ·
map ↗
Data: FCC Universal Licensing System, amateur service · refreshed nightly
n9tpb.com · 73 de N9TPB