🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 13, 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)
Currently held by MARK A NELSON
· 1 holder on record
Current holder: MARK A NELSON
Held WB9GNC Dec 23, 1986 → present
· first licensed Dec 23, 1986 as WB9GNC
· 1 license · FRN 0013577291 📖 In the printed callbooks since 1973 as WB9GNC, before the FCC's online records
WB9GNCActiveAmateur ExtraDec 23, 1986 → expires Aug 29, 2035
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 Oct 8, 1999 → Apr 17, 2003 · 8 discs WB9GNC
· Amateur Extra · issued Apr 19, 1999, expires Aug 29, 2005
MARK A. NELSON
821 3RD AVE S, GREAT FALLS, MT 59405-2102
Seen Oct 26, 1995 → Apr 7, 1999 · 7 discs WB9GNC
· Advanced · issued Aug 29, 1995, expires Aug 29, 2005
MARK A NELSON
821 3RD AVE S, GREAT FALLS, MT 59405
Seen Sep 9, 1993 → May 12, 1995 · 4 discs WB9GNC
· Advanced · issued Dec 23, 1986, expires Dec 23, 1996
MARK A NELSON
1512 2ND AVE N, GREAT FALLS, MT 59401
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Nov 7, 2004 → Oct 11, 2026 · 49 snapshots · as WB9GNC
MARK A NELSON
821 3RD AVE S, GREAT FALLS, MT 59405-2102
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 WB9GNC · class A
Mark A Nelson 611 3rd Avenue S, Great Falls, MT 59405 1997 p.1876
1996 · 1 edition WB9GNC · class A
Mark A Nelson 1511 2nd Avenue N, Great Fans, MT 59401 1996 p.1808
1990 → 1995 · 2 editions WB9GNC · class A
Mark A Nelson 1512 2nd Avenue N, Great Falls, MT 59401 Winter 1990 p.1243, 1995 p.1753
1980 · 1 edition WB9GNC · class A
Mark A Nelson 809 Hyannis Ct, Schaumburg, IL 60172 Winter 1980 p.1031
1979 · 1 edition WB9GNC · class A
Mark A Nelson 809 H~anris Ci, Schaumburg, IL 60172 Winter 1979 p.459
1977 · 1 edition WB9GNC · class A
Mark A Nelson 809 Hyannis Ct, Schaumburg 60172 Il Winter 1977 p.638
1976 · 1 edition WB9GNC · class G
Mark A Nelson 807 Hyannis Ct, Schaumburg 60172 Il Winter 1976 p.589
1974 · 1 edition WB9GNC
G Marl< A N~son 807 Hyannis Ct, Schaumbu~ &0172 Il Winter 1974 p.585
1973 · 1 edition WB9GNC · class G
Mark A Nelson 807 Hyannis Ct, Schaumburg 60172 I L Winter 1973 p.586
📡 On the Air: APRS, Digital & WSPR Spots
No APRS positions, PSK Reporter reports or WSPR spots for WB9GNC in the last 24 hours. They show up here within seconds of WB9GNC beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.