N9TPB FCC License Search
🕒 FCC license data updated yesterday 6:02 am CDT (FCC files through Oct 16, 2026) · next update today 7:15 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)

KB4OSX HAM 📻 GMRS

📻
Also a GMRS licensee
WROC681
Active until Sep 25, 2031 · same FCC Registration Number (FRN) · GMRS covers the licensee's immediate family
Technician class licensed since 1985 (41 yrs) KB4OSX since 1985 · previously KO4VYR Marianna, FL Grid EM70js GMRS WROC681 57 repeaters within 50 mi
🔒 Not available — currently licensed, through Feb 1, 2032. If it isn't renewed, it opens for vanity requests Feb 2, 2034.

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

📝 KB4OSX has filed vanity applications before — latest filed Jan 13, 2022 · what was requested

Currently held by Bradley D Martin · 2 holders on record

Current holder: Bradley D Martin

Held KB4OSX Jun 21, 1985 → present · first licensed Jun 21, 1985 as KB4OSX · 2 licenses · FRN 0031428055

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.

Previous holder: BRADLEY D MARTIN

Held KB4OSX Jun 21, 1985 → Jan 22, 2006 · first licensed Jun 21, 1985 as KB4OSX · 1 license · no FRN on file (pre-2001 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.
KB4OSX 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.

Vanity Applications Filed by KB4OSX

Calls this licensee has asked the FCC for, newest first, in their order of preference. The FCC processes applications 18 days after filing; "likely award" is our estimate from every pending application in filing order.

Filed · AwardApplicantRequested (in order)Status
Filed Jan 13, 2022
Granted Feb 1, 2022
0009868507
 KO4VYR · Bradley D Martin · Technician
4423 Woodbrook Dr, Marianna, FL 32446
30.7859, -85.2279 (street) · Grid EM70js · CQ 5 · ITU 8 · map ↗
1.KB4OSX ✓ Granted
 Granted
got KB4OSX

Others Requesting KB4OSX

1 application listed KB4OSX as a choice, newest first.

FiledAwardApplicantChoice #KB4OSXResult
Jan 13, 2022 Jan 31, 2022 KO4VYR · Bradley D Martin · Marianna, FL 1Granted Granted this call

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for KB4OSX in the last 24 hours. They show up here within seconds of KB4OSX beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

📻 GMRS Repeaters within 50 Miles

3 on the air or of unknown status, closest first · map these & export for a GMRS radio →

MilesChannelOutputTone inOwnerLocationAccessStatus
26RP15462.550141.3 WRTJ547 Dothan, AL OpenOn the air
30RP19462.65094.8 WSLT378 Brinson, GA OpenOn the air
48RP21462.700179.9 WRPW716 Panama City, FL · E 15th St / Transmitter Rd OpenOn the air

Repeaters within 50 Miles

57 repeaters within 50 miles of this address, 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 · 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
31.7 W4DHN Dothan WOOF
W4DHN
 145.4300 -0.6 TSQL 186.2 FM (analog) 🗓 1 net 1 net · 53 check-ins · 26 stations Dothan, AL
31.7 W4DHN Dothan WDHN
W4DHN
 444.7750 +5 TSQL 186.2 FM (analog) 🗓 1 net 1 net · 53 check-ins · 26 stations Dothan, AL
0.8 W4BKD Marianna
W4BKD
 146.6700 -0.6 TSQL 123.0 FM (analog) — Marianna, FL
0.8 W4BKD Marianna
W4BKD
 444.9500 +5 TSQL 123.0 FM (analog) (C4FM,FM) — Marianna, FL
1.2 WX4EC Marianna
WX4EC
 147.0450 +0.6 TONE 123.0 FM (analog) — Marianna, FL
2.5 WO4J Marianna
WO4J
 147.2700 +0.6 TONE 107.2 FM (analog) — Marianna, FL
2.5 WO4J Marianna
WO4J
 147.0900 +0.6 TONE 67.0 FM (analog) — Marianna, FL
3.9 KE4RBL Marianna
KE4RBL BM
 433.3750 +5 CC1 DMR BrandMeister 320483906 — Marianna, FL, FL
17.7 K4KHV Chipley
K4KHV
 146.7600 -0.6 TONE 186.2 FM (analog) — Chipley, FL
18.4 KJ4BDU Chipley
KJ4BDU
 443.2000 +5 TONE 103.5 FM (analog) — Chipley, FL
18.4 WA4MN Chipley
WA4MN
 444.7500 +5 TONE 100.0 FM (analog) — Chipley, FL
21.4 WA4MN Chipley
WA4MN
 147.1950 +0.6 TONE 103.5 FM (analog) — Chipley, FL
21.8 WA4MN Chipley
WA4MN
 223.8500 -1.6 none FM (analog) — Chipley, FL
22.2 N4PTW Chipley
N4PTW
 146.6250 -0.6 TSQL 100.0 FM (analog) — Chipley, FL
23.7 K4GFD Chattahoochee
K4GFD
 444.9750 +5 TSQL 94.8 FM (analog) — Chattahoochee, FL
24.4 NX4DN Chattahoochee
NX4DN NX4DN
 441.1375 +5 CC1 DMR NX4DN — Chattahoochee, FL
24.4 AC4QB Panama City
AC4QB
 145.3300 -0.6 TSQL 100.0 FM (analog) — Panama City, FL
25.5 K4AGR Dothan
K4AGR AllStar
 442.6000 +5 TONE 123.0 FM (analog) (FM,P25) AllStar 560710 — Dothan, AL
25.9 N4BFS Bonifay Holmes
N4BFS
 444.6500 +5 TSQL 100.0 FM (analog) (DMR,FM) — Bonifay, FL
26.8 N4LMI Bonifay
N4LMI
 145.1100 -0.6 TSQL 100.0 FM (analog) — Bonifay, FL
26.8 KF4KQE Bonifay
KF4KQE
 146.9100 -0.6 TONE 100.0 FM (analog) — Bonifay, FL
26.9 K4AGR Rehobeth
K4AGR AllStar
 147.3150 +0.6 TSQL 123.0 FM (analog) (C4FM,FM) WIRES-X 90261 AllStar 560710 — Rehobeth, AL
28.7 KG4ITD Bristol
KG4ITD
 146.7150 -0.6 TONE 94.8 FM (analog) — Bristol, FL
30.1 KD4EKC Panama City
KD4EKC
 146.9400 -0.6 TONE 103.5 FM (analog) — Panama City, FL
30.2 W4RYZ Bennett
W4RYZ
 145.2100 -0.6 TSQL 100.0 FM (analog) (C4FM,FM) — Bennett, FL
30.2 KK4TAD Bennett
KK4TAD
 146.8800 -0.6 TSQL 100.0 FM (analog) (DV,FM) — Bennett, FL
31.2 NX4DN Chattahoochee
NX4DN
 443.0250 +5 CC? DMR — Chattahoochee, FL
31.4 N4RJJ Youngstown
N4RJJ BM
 433.3750 +5 CC1 DMR BrandMeister 310590401 — Youngstown, FL, FL
31.7 WR4OG Dothan
WR4OG
 146.8500 -0.6 TSQL 186.2 FM (analog) — Dothan, AL
31.7 KC4JBF Dothan
KC4JBF EchoLink
 147.1400 +0.6 TSQL 186.2 FM (analog) EchoLink 444850 — Dothan, AL
31.7 WR4OG Dothan
WR4OG
 444.6750 +5 TSQL 186.2 FM (analog) — Dothan, AL
31.7 WR4OG Dothan
WR4OG
 444.8500 +5 TSQL 186.2 FM (analog) — Dothan, AL
31.7 WR4OG Dothan
WR4OG
 444.9000 +5 TSQL 186.2 FM (analog) — Dothan, AL
32.5 NX4DN Greensboro
NX4DN
 147.3900 +0.6 TONE 94.8 FM (analog) — Greensboro, FL
32.5 NX4DN Greensboro
NX4DN EchoLink
 444.1250 +5 TSQL 94.8 FM (analog) EchoLink 6433 — Greensboro, FL
32.5 NX4DN Greensboro
NX4DN NX4DN
 444.9875 +5 CC1 DMR NX4DN — Greensboro, FL
33.5 K4GFD Greensboro
K4GFD BM
 444.9875 +5 CC1 DMR DMR-MARC BrandMeister — Greensboro, FL
36.4 KJ4BDU Chipley
KJ4BDU
 444.1750 +5 TONE 103.5 FM (analog) — Chipley, FL
39.5 KM4AOR Panama City
KM4AOR
 147.0600 +0.6 TONE 100.0 FM (analog) — Panama City, FL
40.0 AC4QB Panama City
AC4QB
 444.5250 +5 TONE 100.0 FM (analog) — Panama City, FL
41.4 W4GEN Geneva Wtr
W4GEN
 145.2700 -0.6 TONE 103.5 FM (analog) — Geneva, AL
42.6 KE4FD Panama City Bay
KE4FD
 146.9400 -0.6 TSQL 100.0 FM (analog) (C4FM,FM) — Panama City, FL
44.0 K2DAL Daleville
K2DAL
 146.7000 -0.6 TSQL 186.2 FM (analog) — Daleville, AL
44.3 W4DRK Daleville
W4DRK
 146.7000 -0.6 TSQL 186.2 FM (analog) — Daleville, AL
44.7 W4GEN Geneva
W4GEN
 145.1600 -0.6 none D-STAR — Geneva, AL
46.0 W4RYZ Lynn Haven
W4RYZ
 147.2100 +0.6 CC0 DMR — Lynn Haven, FL
46.0 W4FFC Wewahitchka
W4FFC
 146.8650 -0.6 TONE 100.0 FM (analog) — Wewahitchka, FL
46.2 KR4FUB Daleville
KR4FUB EchoLink
 147.3450 +0.6 TSQL 123.0 FM (analog) EchoLink 478859 — Daleville, AL
47.9 KV4ATV Panama City
KV4ATV
 145.2500 -0.6 TSQL 100.0 FM (analog) — Panama City, FL
47.9 KV4ATV Panama City
KV4ATV
 444.2500 +5 TSQL 100.0 FM (analog) (FM,DMR) — Panama City, FL
49.2 AG4UU Panama City
AG4UU
 444.1750 +5 TONE 100.0 FM (analog) — Panama City, FL
49.3 KQ4YKF Havana
KQ4YKF BM
 438.9000 -5 CC1 DMR BrandMeister 3213081 — Havana, FL
49.5 KP3AMG Panama City
KP3AMG AllStar
 146.4200 simplex TONE 88.5 FM (analog) AllStar 42796 — Panama City, FL
49.5 KP3AMG Panama City
KP3AMG AllStar
 439.9500 simplex TONE 82.5 FM (analog) AllStar 69796 — Panama City, FL
49.6 W4EAF Gadsden
W4EAF
 147.1650 +0.6 TONE 94.8 FM (analog) — Gadsden, FL
49.6 KM4OAR Panama City
KM4OAR
 147.0600 +0.6 TSQL 100.0 FM (analog) (FM,C4FM) — Panama City, FL
49.6 N1HQ Panama City
N1HQ
 444.1000 +5 TSQL 100.0 FM (analog) (C4FM,FM) — Panama City, FL