N9TPB FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 12, 2026) · next update today 8:30 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)

N4RRM HAM

Technician class licensed since 2021 (5 yrs) N4RRM since 2021 · previously KO4SUT St George, SC Grid EM93rd 76 repeaters within 50 mi
🔒 Not available — currently licensed, through Oct 13, 2031. If it isn't renewed, it opens for vanity requests Oct 14, 2033.

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

📝 N4RRM has filed vanity applications before — latest filed Sep 24, 2021 · what was requested

Currently held by Ryan C Heid · 2 holders on record

Current holder: Ryan C Heid

Held N4RRM Oct 13, 2021 → present · first licensed Aug 23, 2021 as KO4SUT · 2 licenses · FRN 0031290000

Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

Previous holder: RONALD A MUDERSBACH

Held N4RRM Mar 14, 1989 → Apr 7, 2009 · first licensed Mar 14, 1989 as N4RRM · 3 licenses · FRN 0018360016

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.
N4RRM 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 N4RRM

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 Sep 24, 2021
Granted Oct 13, 2021
0009727568
 KO4SUT · Ryan C Heid · Technician
5451 ALTAMAHA DR, NORTH CHARLESTON, SC 29420-6821
32.9325, -80.1001 (ZIP center) · Grid EM92ww · CQ 5 · ITU 8 · map ↗
1.N4RRM ✓ Granted
 Granted
got N4RRM

Others Requesting N4RRM

2 applications listed N4RRM as a choice, newest first.

FiledAwardApplicantChoice #N4RRMResult
Sep 24, 2021 Oct 12, 2021 KO4SUT · Ryan C Heid · NORTH CHARLESTON, SC 1Granted Granted this call
Nov 8, 2019 Nov 26, 2019 KN4ZQC · Richard J Malin · Calabash, NC 2Not granted They got K4ZRM (choice 1)

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for N4RRM in the last 24 hours. They show up here within seconds of N4RRM beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 Miles

76 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
3.9 WR4SC Saint George
WR4SC NC-PRN
 440.6500 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 254 check-ins · 104 stations Saint George, SC
29.8 WR4SC White Hall
WR4SC NC-PRN
 442.3875 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 254 check-ins · 104 stations White Hall, SC
32.3 WR4SC Orangeburg
WR4SC
 146.8800 -0.6 TSQL 123.0 FM (analog) 🗓 2 nets 2 nets · 254 check-ins · 104 stations Orangeburg, SC
32.3 WR4SC Orangeburg
WR4SC NC-PRN
 440.5875 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 254 check-ins · 104 stations Orangeburg, SC
32.3 WR4SC Orangeburg
WR4SC
 441.7500 +5 TONE 123.0 FM (analog) 🗓 2 nets 2 nets · 254 check-ins · 104 stations Orangeburg, SC
38.5 WR4SC Charleston
WR4SC
 147.1050 +0.6 TSQL 123.0 FM (analog) 🗓 2 nets 2 nets · 254 check-ins · 104 stations Charleston, SC
38.5 WR4SC Florence
WR4SC
 441.5750 +5 TSQL 91.5 FM (analog) 🗓 2 nets 2 nets · 254 check-ins · 104 stations Florence, SC
38.5 WR4SC Charleston
WR4SC NC-PRN
 443.0375 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 254 check-ins · 104 stations Charleston, SC
46.9 WR4SC Barnwell
WR4SC
 147.0300 +0.6 TSQL 156.7 FM (analog) 🗓 2 nets 2 nets · 254 check-ins · 104 stations Barnwell, SC
48.6 WR4SC Barnwell
WR4SC NC-PRN
 440.6875 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 254 check-ins · 104 stations Barnwell, SC
48.6 WR4SC Barnwell
WR4SC
 442.0000 +5 TONE 91.5 FM (analog) 🗓 2 nets 2 nets · 254 check-ins · 104 stations Barnwell, SC
48.8 WR4SC Beaufort
WR4SC NC-PRN
 441.9875 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 254 check-ins · 104 stations Beaufort, SC
37.7 KK4B Cordesville
KK4B
 145.3500 -0.6 TSQL 162.2 FM (analog) 🗓 2 nets 2 nets · 43 check-ins · 26 stations Cordesville, SC
39.2 KK4B Russellville
KK4B
 147.3000 +0.6 TSQL 162.2 FM (analog) 🗓 2 nets 2 nets · 43 check-ins · 26 stations Russellville, SC
3.1 KA4GDW Saint George M&M
KA4GDW
 147.0450 +0.6 TSQL 103.5 FM (analog) — Saint George, SC
11.7 W4ANK Jedburg
W4ANK
 147.2700 +0.6 TONE 123.0 FM (analog) — Jedburg, SC
12.0 W4HNK Dorchester
W4HNK
 147.1800 +0.6 TONE 123.0 FM (analog) — Dorchester, SC
12.0 W4HNK Dorchester
W4HNK
 443.8000 +5 TONE 123.0 FM (analog) — Dorchester, SC
14.8 K4LMD Branchville
K4LMD
 145.2100 -0.6 TSQL 100.0 FM (analog) — Branchville, SC
16.0 W4HRS Walterboro Colle
W4HRS
 444.8500 +5 TONE 123.0 FM (analog) — Walterboro, SC
16.8 KG4BZN Walterboro
KG4BZN
 147.1350 +0.6 none FM (analog) — Walterboro, SC
16.8 KG4BZN Walterboro
KG4BZN
 444.5500 +5 TONE 123.0 FM (analog) — Walterboro, SC
16.9 KA4GDW Bowman
KA4GDW
 146.8350 -0.6 TSQL 179.9 FM (analog) — Bowman, SC
17.5 KA4GDW Bowman
KA4GDW
 224.7800 -1.6 TSQL 179.9 FM (analog) — Bowman, SC
19.2 WA4USN Knightsville
WA4USN
 146.9400 -0.6 TSQL 123.0 FM (analog) — Knightsville, SC
19.2 WA4USN Mount Pleasant
WA4USN
 441.4500 +5 TSQL 123.0 FM (analog) — Mount Pleasant, SC
19.2 WA4NMW Knightsville
WA4NMW
 147.2250 +0.6 TSQL 123.0 FM (analog) — Knightsville, SC
20.5 N7GZT Vance
N7GZT AllStar
 442.2000 +5 DCS 023 FM (analog) AllStar 637122 AllStar 637121 — Vance, SC
22.3 KJ4QLH Vance
KJ4QLH
 146.8050 -0.6 TSQL 156.7 FM (analog) — Vance, SC
23.5 KC4ED Summerville
KC4ED
 442.3000 +5 none FM (analog) — Summerville, SC
23.6 KX4DOR Summerville
KX4DOR
 145.2800 -0.6 none D-STAR — Summerville, SC
23.6 KX4DOR Summerville
KX4DOR
 442.8375 +5 none D-STAR — Summerville, SC
24.4 N9HQC Ravenel
N9HQC BM
 443.9000 +5 TONE 123.0 FM (analog) (DMR,FM) BrandMeister 314755 — Ravenel, SC
25.9 W4HRS Summerville Med
W4HRS
 146.9850 -0.6 TONE 123.0 FM (analog) — Summerville, SC
26.3 WX3C
Listed as WX3C VHF
 SUMMERVILLE
WX3C BM
 147.2500 +0.6 CC7 DMR BrandMeister 312093 — SUMMERVILLE, SC
26.3 WX3C
Listed as WX3C UHF
 SUMMERVILLE
WX3C BM
 443.3700 +5 CC7 DMR BrandMeister 311239 — SUMMERVILLE, SC
26.3 WX3C Boynton Beach
WX3C BM
 902.9875 +25 CC7 DMR BrandMeister 312098 — Boynton Beach, FL
27.9 N2OBS Ladson
N2OBS EchoLink
 443.7750 +5 TSQL 123.0 FM (analog) EchoLink 99729 — Ladson, SC
27.9 N2OBS Offline Ladson
N2OBS EchoLink
 146.8650 -0.6 TONE 123.0 FM (analog) EchoLink 99729 — Ladson, SC
29.7 KJ4LNJ Offline Green Pond White
KJ4LNJ
 444.0750 +5 none D-STAR — Green Pond, SC
29.8 WB4TGK Bamberg
WB4TGK
 145.3300 -0.6 TONE 156.7 FM (analog) — Bamberg, SC
29.8 WA4SJS White Hall
WA4SJS
 146.9100 -0.6 TONE 156.7 FM (analog) — White Hall, SC
29.8 KJ4LNJ Offline Green Pond S.C
KJ4LNJ
 145.4800 -0.6 none D-STAR — Green Pond, SC
30.1 W4HRS Nort Trident Hos
W4HRS
 146.7300 -0.6 TONE 123.0 FM (analog) — North Charleston, SC
31.9 K4IUG Adams Run
K4IUG
 147.3450 +0.6 TSQL 141.3 FM (analog) — Adams Run, SC
31.9 W4BRK Moncks Corner
W4BRK
 146.6100 -0.6 TSQL 123.0 FM (analog) — Moncks Corner, SC
32.3 W4HRS Moncks Corne EOC
W4HRS
 145.4900 -0.6 TONE 103.5 FM (analog) — Moncks Corner, SC
32.6 KJ4QLH Orangeburg /Calh
KJ4QLH
 147.3900 +0.6 TSQL 156.7 FM (analog) — Orangeburg, SC
35.1 NE2S Hanahan
NE2S BM
 439.5000 -5 CC1 DMR BrandMeister 316694501 — Hanahan, SC
37.3 W4HRS Charleston
W4HRS
 444.7750 +5 TONE 123.0 FM (analog) — Charleston, SC
38.8 K4IUG West Ashley FS 1
K4IUG
 443.3750 +5 TSQL 100.0 FM (analog) — West Ashley, SC
39.0 N7GZT Saint Matthews
N7GZT
 53.2100 -1 none FM (analog) — Saint Matthews, SC
39.0 AD4U Saint Matthews
AD4U
 146.6700 -0.6 TSQL 156.7 FM (analog) — Saint Matthews, SC
39.3 K4IUG Charleston
K4IUG
 224.6600 -1.6 TSQL 210.7 FM (analog) — Charleston, SC
39.7 N7GZT Saint Hemlock rd
N7GZT AllStar
 442.7750 +5 TSQL 156.7 FM (analog) AllStar 637120 — Saint Matthews, SC
39.9 W4HRS Charleston
W4HRS
 145.1600 -0.6 none D-STAR — Charleston, SC
39.9 W4HRS Charleston
W4HRS
 444.1125 +5 none D-STAR — Charleston, SC
40.3 KJ4QLH Neeses
KJ4QLH
 147.0900 +0.6 TONE 156.7 FM (analog) — Neeses, SC
40.9 KJ4BWK Saint Matthews
KJ4BWK
 145.4000 -0.6 none D-STAR — Saint Matthews, SC
42.9 W4HRS Charleston MUSC
W4HRS IRLP
 145.4500 -0.6 TONE 123.0 FM (analog) IRLP 4557 — Charleston, SC
42.9 W4HRS Charleston MUSC
W4HRS
 444.8250 +5 TONE 123.0 FM (analog) — Charleston, SC
43.2 W4APE Greeleyville
W4APE
 444.7500 +5 TSQL 123.0 FM (analog) — Greeleyville, SC
43.3 KM4ABW Manning Hosp
KM4ABW
 145.1500 -0.6 TSQL 91.5 FM (analog) — Manning, SC
44.5 WA4USN Charleston USS
WA4USN
 146.7900 -0.6 TONE 123.0 FM (analog) — Charleston, SC
44.5 WA4USN Seabrook Island
WA4USN
 145.4100 -0.6 TONE 123.0 FM (analog) — Seabrook Island, SC
45.2 W4APE Greeleyville
W4APE EchoLink
 145.2300 -0.6 TONE 123.0 FM (analog) EchoLink 779467 — Greeleyville, SC
46.9 KK4BQ Offline Barnwell
KK4BQ
 449.2500 -5 TONE 156.7 FM (analog) — Barnwell, SC
46.9 KK4BQ Barnwell
KK4BQ
 147.3750 +0.6 TONE 91.5 FM (analog) — Barnwell, SC
47.0 K4IUG Mt Pleasant
K4IUG NONE-USE-C
 443.4500 +5 TSQL 100.0 FM (analog) (DMR,FM) NONE-USE-CONTACT99 — Mt Pleasant, SC
47.1 KK4ZBE Offline Mt Pleasant E
KK4ZBE
 146.6850 -0.6 TSQL 162.2 FM (analog) — Mt Pleasant, SC
47.4 N0VQE Beaufort SC
N0VQE BM
 441.5000 +5 CC1 DMR BrandMeister 311042910 — Beaufort, SC 29907, SC
48.6 KK4BQ Barnwell
KK4BQ
 147.0300 +0.6 TONE 156.7 FM (analog) — Barnwell, SC
48.7 KK2QQ Beaufort
KK2QQ BM
 439.4500 -5 CC1 DMR BrandMeister 3197669 — Beaufort, SC
48.8 W4BFT Beaufort
W4BFT
 441.9875 +5 CC? DMR — Beaufort, SC
49.8 W4BFT Offline Beaufort WJWJ
W4BFT
 146.6550 -0.6 none FM (analog) — Beaufort, SC
49.9 W4BFT Beaufort Hosp
W4BFT
 443.8500 +5 TSQL 123.0 FM (analog) — Beaufort, SC