N9TPB FCC License Search
🕒 FCC license data updated today 7:16 am CDT (FCC files through Oct 7, 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)

WB0MRK HAM

General class licensed since 1986 (40 yrs) White River, SD Grid DN93on 1 repeaters within 50 mi
🔒 Not available — currently licensed, through May 12, 2027. If it isn't renewed, it opens for vanity requests May 13, 2029.

📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH

Currently held by MARK A DEWES · 1 holder on record

Current holder: MARK A DEWES

Held WB0MRK Dec 16, 1986 → present · first licensed Dec 16, 1986 as WB0MRK · 1 license · FRN 0002235141
📖 In the printed callbooks since 1979 as WB0MRK, before the FCC's online records

Callbook Records, 1993–2003
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.
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
WB0MRK in the Printed Callbooks, 1909–1997
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.

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for WB0MRK in the last 24 hours. They show up here within seconds of WB0MRK beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 Miles

1 repeater within 50 miles of this ZIP code, most active first · sort: closest · most active · map these & export for a radio →

● confirmed on the air · ● probably · ● reported off the air · ● unknown · ◉ this license · ring = 50 miles · center is the ZIP code (approximate) · click a dot for the repeater's page
● confirmed on the air · ● probably · ● reported off the air · no dot = unknown (hover a dot for the evidence)
MilesCallNameOutputOffsetToneModeNetworksActivityLocation
21.9 AA0CT Murdo
AA0CT
 147.3000 +0.6 TONE 146.2 FM (analog) — Murdo, SD