🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 19, 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 · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)
WB1DNZ HAM
✅ Available for a vanity request — free since Oct 13, 2020.
2x3 call: any licensee can request it.
No pending applications list it.
Not currently held
· 1 holder on record
· available since Oct 13, 2020
Previous holder: STEPHEN G MAC KENZIE
Held WB1DNZ Dec 24, 1991 → Oct 12, 2018
· first licensed Dec 24, 1991 as WB1DNZ
· 2 licenses · FRN 0003638830 📖 In the printed callbooks since 1979 as WB1DNZ, before the FCC's online records
K1DNZActiveAdvanced · vanityOct 12, 2018 → expires Oct 12, 2028
From the FCC amateur database as published on the QRZ! callsign CD-ROMs, 1993–2003, before and alongside the FCC's online records (which start in 1999). "Seen" dates are the first and last disc showing that record; the issue date is the FCC's, so it can be a renewal of an even older license.
Seen Nov 1, 2001 → Apr 17, 2003 · 4 discs WB1DNZ
· Advanced · issued Sep 26, 2001, expires Dec 24, 2011
STEPHEN G. MAC KENZIE
13 JACKSON CT, NATICK, MA 01760
Seen Sep 9, 1993 → Apr 13, 2001 · 15 discs WB1DNZ
· Advanced · issued Dec 24, 1991, expires Dec 24, 2001
STEPHEN G. MAC KENZIE
13 JACKSON CT, NATICK, MA 01760
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Nov 7, 2004 → Oct 18, 2026 · 67 snapshots · as WB1DNZ
STEPHEN G MAC KENZIE
13 JACKSON CT, NATICK, MA 01760
From scanned copies of the printed callbooks (government lists from 1913, then the Radio Amateur Callbook to 1997), read by OCR, so names and streets can carry typos. Each line is one or more editions in a row showing the same name at the same address.
1997 · 1 edition WB1DNZ
A Ste~hen G Mackenzie Ij Jackson Ct, Natick 1997 p.180
1990 → 1996 · 2 editions WB1DNZ · class A
Stephen G Mackenzie 34 Rang~y Rd, Waltham, MA 02154 Winter 1990 p.128, 1996 p.173
1980 → 1987 · 5 editions WB1DNZ · class G
Stephen G Mackenzie 34 Rangely Rd, Waltham, MA 02154 Winter 1980 p.119, Winter 1981 p.118, Winter 1983 p.126, Winter 1986 p.127, Winter 1987 p.127
1979 · 1 edition WB1DNZ
N St9llhen G Mackenzie 34 Rlmely Rd, Walth8lll, MA 02154 Winter 1979 p.112
📡 On the Air: APRS, Digital & WSPR Spots
No APRS positions, PSK Reporter reports or WSPR spots for WB1DNZ in the last 24 hours. They show up here within seconds of WB1DNZ beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.