N9TPB FCC License Search
🕒 FCC license data updated today 9:42 am CDT (FCC files through Sep 30, 2026) · next update tomorrow 9:15 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

KP4RC HAM

🔒 Not available — currently licensed, through Jul 22, 2035. If it isn't renewed, it opens for vanity requests Jul 23, 2037.

📬 QSL: not on LoTW · eQSL AG as WP4RC

📝 KP4RC has filed vanity applications before — latest filed Jul 3, 2025 · what was requested

Currently held by RUBEN CRESPO-RODRIGUEZ · 3 holders on record

Current holder: RUBEN CRESPO-RODRIGUEZ

Held KP4RC Jul 22, 2025 → present · first licensed Nov 2, 2005 as WP4NQM · 5 licenses · FRN 0014220552

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

Previous holder: CARLOS J ALCAIDE

Held KP4RC Jul 12, 2011 → Jul 12, 2021 · first licensed Feb 22, 2011 as WP4OIO · 2 licenses · FRN 0020626511

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

Previous holder: CARLOS J ALCAIDE SR

Held KP4RC Dec 10, 1997 → Dec 10, 2007 · first licensed Dec 10, 1997 as KP4RC · 1 license · no FRN on file (pre-2001 records)

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

Vanity applications filed by KP4RC

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 Jul 3, 2025
Granted Jul 22, 2025
0011634468
 KP4DY · RUBEN CRESPO-RODRIGUEZ · Amateur Extra
HC 58 BOX 14220, AGUADA, PR 00602
18.3619, -67.1756 (ZIP center) · Grid FK68ji · CQ 8 · ITU 11 · map ↗
1.KP4RC ✓ granted
 Granted
got KP4RC
Filed May 17, 2018
Granted Jun 5, 2018
0008214508
 NP4DY · RUBEN CRESPO-RODRIGUEZ · Amateur Extra
HC 58 BOX 14220, AGUADA, PR 00602
18.3619, -67.1756 (ZIP center) · Grid FK68ji · CQ 8 · ITU 11 · map ↗
1.KP4DY ✓ granted
 Granted
got KP4DY
Filed Apr 2, 2018
Granted Jun 5, 2018
0008156627
 NP4DY · RUBEN CRESPO-RODRIGUEZ · General
HC 58 BOX 14220, AGUADA, PR 00602
18.3619, -67.1756 (ZIP center) · Grid FK68ji · CQ 8 · ITU 11 · map ↗
1.KP4DY ✓ granted
 Dismissed
got KP4DY
Filed Feb 10, 2017
Granted Feb 28, 2017
0007656790
 WP4RC · RUBEN CRESPO-RODRIGUEZ · General
HC 58 BOX 14220, AGUADA, PR 00602
18.3619, -67.1756 (ZIP center) · Grid FK68ji · CQ 8 · ITU 11 · map ↗
1.NP4DY ✓ granted
 Granted
got NP4DY
Filed Mar 15, 2012
Award date was Apr 2, 2012
0005120385
 WP4NQM · RUBEN CRESPO-RODRIGUEZ · General
HC 58 BOX 14220, AGUADA, PR 00602
18.3619, -67.1756 (ZIP center) · Grid FK68ji · CQ 8 · ITU 11 · map ↗
1.WP4RC held
 Granted

Others requesting KP4RC

5 applications listed KP4RC as a choice, newest first.

FiledAwardApplicantChoice #Status
Jul 3, 2025 Jul 21, 2025 KP4DY · RUBEN CRESPO-RODRIGUEZ · AGUADA, PR 1Granted
Jan 21, 2025 Feb 8, 2025 WP4OYU · JOSE A DILAN · VEGA BAJA, PR 1Dismissed
Jun 23, 2011 Jul 11, 2011 WP4OIO · CARLOS J ALCAIDE · SAN JUAN, PR 1Granted
May 28, 2002 Jun 15, 2002 NP4QR · RAFAEL CUEBAS RAMIREZ · ANAZCO, PR 12Dismissed
May 28, 2002 Jun 15, 2002 NP4QR · RAFAEL CUEBAS RAMIREZ · ANAZCO, PR 4Dismissed

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KP4RC in the last 24 hours. They show up here within seconds of KP4RC beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 miles

92 repeaters within 50 miles of this ZIP code, closest 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
0.9 NP4WX Aguada
NP4WX
 145.3300 -0.6 TONE 100.0 FM (analog) — Aguada, PR
0.9 KP4ASD Ponce
KP4ASD
 449.1500 -5 TSQL 110.9 FM (analog) — Ponce, PR
1.5 KP3JE Aguada
KP3JE AllStar
 449.6250 -5 TONE 88.5 FM (analog) (FM,C4FM) AllStar 53152 — Aguada, PR
1.5 WP3JJ Aguada
WP3JJ DMRplus-RE
 440.7500 +5 none FM (analog) (DMR,FM) DMRplus-REF-4630 — Aguada, PR
1.7 KP4JE Aguada
KP4JE
 449.6250 -5 TSQL 88.5 FM (analog) — Aguada, PR
2.1 KP4KJI Aguada
KP4KJI AllStar
 145.1700 -0.6 TONE 114.8 FM (analog) (FM,C4FM) AllStar 55730 — Aguada, PR
2.4 WP3OF Aguada Cerro
WP3OF EchoLink
 449.0250 -5 TSQL 100.0 FM (analog) EchoLink 126123 — Aguada, PR
4.7 KP4ECO Moca
KP4ECO
 446.5250 -5 none FM (analog) (FM,DV,DMR,C4FM) — Moca, PR
6.0 NP4GT Añasco
NP4GT
 449.9750 -5 DCS 315 FM (analog) (C4FM,DMR,FM) — Añasco, PR
6.6 no call listed Moca
AllStar
 446.6250 -5 TSQL 127.3 FM (analog) (FM,C4FM) AllStar 46462 EchoLink 172233 WIRES-X 45489 — Moca, PR
7.6 KP4LCS Corrales
KP4LCS
 147.0300 +0.6 TONE 67.0 FM (analog) — Corrales, PR
11.3 WP4QFG Mayaguez
WP4QFG
 446.9250 -5 none FM (analog) (FM,DMR) — Mayaguez, PR
11.4 KP4ILO Aguadilla
KP4ILO AllStar
 146.7500 -0.6 TONE 100.0 FM (analog) (DMR,FM) AllStar 45929 — Aguadilla, PR
11.8 WP4VH Mayaguez
WP4VH
 449.0000 -5 TONE 136.5 FM (analog) — Mayaguez, PR
12.0 WP3L Isabela
WP3L
 447.1750 -5 TONE 100.0 FM (analog) — Isabela, PR
12.0 KQ4HAC San Sebastian
KQ4HAC AllStar
 446.6750 -5 TSQL 100.0 FM (analog) AllStar 59431 AllStar 61074 — San Sebastian, PR
12.1 NP4PC San Sebastian
NP4PC AllStar
 448.6500 -5 TONE 100.0 FM (analog) (FM,C4FM) AllStar 46514 — San Sebastian, PR
12.9 KP4EL Aguada Atalaya
KP4EL
 446.4000 -5 TONE 100.0 FM (analog) (FM,DMR) — Aguada, PR
13.5 NP4PC San Sebastian
NP4PC AllStar
 449.7375 -5 TONE 88.5 FM (analog) AllStar 46514 — San Sebastian, PR
17.4 WP3OF Quebradillas
WP3OF
 146.8700 -0.6 TSQL 100.0 FM (analog) — Quebradillas, PR
18.2 KP4NIN Maricao
KP4NIN
 449.7750 -5 TONE 123.0 FM (analog) — Maricao, PR
18.8 NP3WP Maricao
NP3WP
 449.5500 -5 TONE 127.3 FM (analog) — Maricao, PR
19.8 WP4FHR Lares
WP4FHR
 147.0100 +0.6 TONE 77.0 FM (analog) — Lares, PR
19.9 KP4SE San Germain Mont
KP4SE WIRES-X
 147.2900 +0.6 TONE 127.3 FM (analog) (FM,C4FM) WIRES-X 11060 — San Germain, PR
20.1 KP4NET Lares
KP4NET
 448.6000 -5 TONE 123.0 FM (analog) (DMR,FM) — Lares, PR
20.1 NP4PR Lares
NP4PR
 440.8500 +5 TONE 88.5 FM (analog) — Lares, PR
20.3 KP4SE Ponce Monte del
KP4SE
 448.8750 -5 TSQL 136.5 FM (analog) — Ponce, PR
20.6 KP4FRA Maricao
KP4FRA
 146.9300 -0.6 TONE 136.5 FM (analog) — Maricao, PR
20.6 NP3WP Maricao
NP3WP
 224.9200 -1.6 TONE 127.3 FM (analog) — Maricao, PR
20.7 KP4ARN Lares
KP4ARN
 146.7900 -0.6 TONE 79.7 FM (analog) — Lares, PR
21.4 NP3WP San German
NP3WP BM
 433.1500 +5 CC2 DMR BrandMeister 330042101 — San German, PR
21.6 WP4DMR San German
WP4DMR
 446.2500 -5 TONE 85.4 FM (analog) — San German, PR
22.1 KP4NET Lares Monte del
KP4NET AllStar
 147.1300 +0.6 TONE 123.0 FM (analog) AllStar 43360 — Lares, PR
23.1 KP4YC Camuy
KP4YC
 440.3000 +5 TONE 85.4 FM (analog) — Camuy, PR
23.5 WP4FD Lajas PR
WP4FD AllStar
 145.3100 -0.6 DCS 223 FM (analog) AllStar 50386 EchoLink 310100 — Lajas, PR
25.7 KP3Y LAJAS
KP3Y BM
 447.9750 -5 CC1 DMR BrandMeister 330117 — LAJAS, PR
27.1 KP4HCC Boqueron
KP4HCC BM
 439.0000 -5 CC1 DMR BrandMeister 3300118 — Boqueron, PR
28.5 WP3OF Utuado Cerro
WP3OF EchoLink
 447.5750 -5 TSQL 100.0 FM (analog) EchoLink 126123 — Utuado, PR
28.7 WP3R Utuado Arecibo
WP3R EchoLink
 147.3700 +0.6 TONE 77.0 FM (analog) (FM,C4FM) EchoLink 279213 — Utuado, PR
29.1 NP3EC Arecibo
NP3EC
 146.8500 -0.6 CC1 DMR — Arecibo, PR
29.1 KP4JMT Arecibo
KP4JMT
 447.6500 -5 TONE 97.4 FM (analog) — Arecibo, PR
29.6 NP4AD Yauco
NP4AD
 446.8250 -5 TONE 110.9 FM (analog) — Yauco, PR
29.7 WP4ARC Arecibo
WP4ARC
 440.9500 +5 TONE 127.3 FM (analog) — Arecibo, PR
30.6 KP3JE Yauco
KP3JE AllStar
 446.4250 -5 TONE 88.5 FM (analog) AllStar 53152 AllStar 62833 — Yauco, PR
31.0 KP4ST Adjuntas
KP4ST
 147.3500 +0.6 TONE 127.3 FM (analog) — Adjuntas, PR
31.1 KP4KJI Yauco Monte
KP4KJI EchoLink
 448.2000 -5 TONE 100.0 FM (analog) EchoLink 433158 — Yauco, PR
31.2 NP3AB Utuado
NP3AB
 145.4700 -0.6 TONE 127.3 FM (analog) — Utuado, PR
31.2 KP4LUW Utuado
KP4LUW
 448.4500 -5 TONE 127.3 FM (analog) — Utuado, PR
31.3 KP4JE Yauco
KP4JE
 446.4250 -5 TSQL 88.5 FM (analog) — Yauco, PR
31.9 NP4PS Utuado
NP4PS
 449.4000 -5 TONE 67.0 FM (analog) (FM,DMR) — Utuado, PR
32.4 KP4AE Utuado
KP4AE
 145.4300 -0.6 none FM (analog) — Utuado, PR
39.1 KP4CVR JAYUYA
KP4CVR
 147.2100 +0.6 none D-STAR — JAYUYA, PR
39.4 KP4OG Jayuya
KP4OG
 145.3900 -0.6 TONE 94.8 FM (analog) — Jayuya, PR
39.4 WP4CL Jayuya
WP4CL
 440.1000 +5 TONE 88.5 FM (analog) (FM,C4FM) — Jayuya, PR
39.4 KP4ZZ Jayuya
KP4ZZ
 440.1750 +5 TONE 141.3 FM (analog) — Jayuya, PR
39.4 WP4FUI Jayuya
WP4FUI
 449.9250 -5 TONE 77.0 FM (analog) — Jayuya, PR
39.4 WP4FHR Jayuya
WP4FHR
 224.1200 -1.6 TONE 77.0 FM (analog) — Jayuya, PR
39.6 WP4CRG Jayuya
WP4CRG
 448.3000 -5 TSQL 100.0 FM (analog) (FM,C4FM) — Jayuya, PR
39.6 KP3FR Toa Alta
KP3FR BM
 443.0000 +5 CC1 DMR BrandMeister 3146913 — Toa Alta, PR
40.3 WP4IFU Jayuya
WP4IFU
 147.1500 +0.6 TSQL 77.0 FM (analog) — Jayuya, PR
40.3 WP4AZT Jayuya
WP4AZT
 448.5000 -5 TONE 127.3 FM (analog) — Jayuya, PR
40.3 KP4BQN Moca
KP4BQN
 224.4200 -1.6 TONE 136.5 FM (analog) — Moca, PR
40.3 WP4AZT Jayuya
WP4AZT
 447.0500 -5 TONE 127.3 FM (analog) — Jayuya, PR
40.7 KP4LR PONCE
KP4LR BM
 446.5000 -1 CC2 DMR BrandMeister 330009345 — PONCE, PR
43.6 WP4JOT Ponce
WP4JOT BM
 446.7000 -5 CC0 DMR BrandMeister 330105 — Ponce, PR
43.9 WP4J Ponce
WP4J
 145.2100 -0.6 TONE 123.0 FM (analog) — Ponce, PR
43.9 KP4NIN Ponce
KP4NIN
 448.3750 -5 TONE 123.0 FM (analog) — Ponce, PR
43.9 WP4NWR Ponce
WP4NWR
 448.8500 -5 TONE 100.0 FM (analog) — Ponce, PR
44.3 WP4X Ponce
WP4X
 448.7000 -5 TONE 100.0 FM (analog) — Ponce, PR
44.6 WP4SQD PONCE
WP4SQD BM
 439.0000 -5 CC1 DMR BrandMeister 3300439 — PONCE, PR
44.6 WP4RSQ Ponce
WP4RSQ BM
 439.9500 -5 CC1 DMR BrandMeister 3300294 — Ponce, PR
45.2 WP3VT Cent Plaza recre
WP3VT
 446.7250 -5 none FM (analog) — Centro urbano, PR
45.2 KP4GBF Ponce
KP4GBF BM
 433.1000 +5 CC1 DMR BrandMeister 330020601 — Ponce, PR
45.2 KP3IV Manati
KP3IV AllStar
 448.9500 -5 TONE 151.4 FM (analog) AllStar 42972 — Manati, PR
47.7 WP4AZT Villalba
WP4AZT
 147.0500 +0.6 TSQL 127.3 FM (analog) — Villalba, PR
47.7 WP4RWR Ponce
WP4RWR BM
 448.6000 -5 CC1 DMR BrandMeister 330067 — Ponce, PR
48.8 KP4LRL Juana Diaz
KP4LRL
 449.8750 -5 TONE 77.0 FM (analog) — Juana Diaz, PR
3.4 WP4CPV offline Aguada
WP4CPV
 147.2300 +0.6 TSQL 107.2 FM (analog) — Aguada, PR
11.3 KP3JAC offline San Puerto Rico
KP3JAC
 448.6000 -5 CC? DMR — San Sebastian, Puerto Rico, All Regions, PR
12.0 NP4NC offline San Sebastian
NP4NC
 446.1500 -5 TSQL 136.5 FM (analog) — San Sebastian, PR
12.0 WP4HVS offline San Sebastian
WP4HVS
 449.3500 -5 TONE 100.0 FM (analog) — San Sebastian, PR
12.3 WP3L offline Isabela
WP3L
 447.4000 -5 TSQL 100.0 FM (analog) — Isabela, PR
19.8 KP3CR offline Lares
KP3CR AllStar
 448.6250 -5 TONE 94.8 FM (analog) AllStar 50092 — Lares, PR
22.1 WP3B offline Puerto Rico
WP3B
 447.9750 -5 CC? DMR — Puerto Rico, Puerto Rico, All Regions, PR
23.0 WP3B offline Puerto Rico
WP3B
 448.6000 -5 CC? DMR — Puerto Rico, Puerto Rico, All Regions, PR
25.7 KP4CAR offline Jayuya Cerro
KP4CAR
 147.2100 +0.6 TSQL 127.3 FM (analog) (FM,C4FM) — Jayuya, PR
40.3 WP4CPV offline Jayuya
WP4CPV
 447.8000 -5 TSQL 136.5 FM (analog) — Jayuya, PR
40.3 KP4CAR offline Jayuya
KP4CAR
 449.8000 -5 TONE 127.3 FM (analog) (FM,C4FM) — Jayuya, PR
40.5 KP4EOP offline Yayuya Puerto
KP4EOP
 446.1500 -5 CC? DMR — Yayuya, Puerto Rico, All Regions, PR
40.5 KP4EOP offline Ponce Puerto
KP4EOP
 448.0000 -5 CC? DMR — Ponce, Puerto Rico, All Regions, PR
44.1 KP4WK offline Ponce
KP4WK IRLP
 147.5650 simplex TSQL 71.9 FM (analog) IRLP 4898 — Ponce, PR
44.2 WP4J offline Ponce Puerto
WP4J
 448.3750 -5 CC? DMR — Ponce, Puerto Rico, All Regions, PR

Data courtesy of RepeaterBook.com