N9TPB FCC License Search

🕒 FCC license data updated today 6:02 am CDT (FCC files through Oct 2, 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

KP4AJ HAM

Amateur Extra class licensed since 2013 (13 yrs) KP4AJ since 2014 · previously WP4OVR Cayey, PR LoTW user heard on PSK Reporter by 3

🔒 Not available — currently licensed, through Feb 22, 2034. If it isn't renewed, it opens for vanity requests Feb 23, 2036.

📬 QSL: LoTW user · last upload Sep 8, 2026 · not eQSL AG · QRZ · HamQTH

📝 KP4AJ has filed vanity applications before — latest filed Feb 4, 2014 · what was requested

Currently held by Edfel J Rivera Rivera · 2 holders on record

Current holder: Edfel J Rivera Rivera

Held KP4AJ Feb 22, 2014 → present · first licensed Dec 16, 2013 as WP4OVR · 2 licenses · FRN 0023211469

📦 Moved: San Juan, PR → Cayey, PR

KP4AJ Active Amateur Extra · vanity Feb 22, 2014 → expires Feb 22, 2034

Licensee
Edfel J Rivera Rivera

Address
P.O. Box 372135
Cayey, PR 00737-2135

FRN
0023211469

Previous call
WP4OVR (General)

Last granted
Nov 28, 2023

Effective
Nov 28, 2023

Last action
Nov 28, 2023
FCC actions (5)
- Nov 28, 2023 — License renewed LIREN
- Oct 19, 2018 — Administrative update LIAUA
- Mar 28, 2015 — Administrative update LIAUA
- Feb 22, 2014 — Vanity call sign granted VANGRT
- Feb 22, 2014 — License issued LIISS
WP4OVR Canceled Amateur Extra Dec 16, 2013 → Feb 22, 2014 (canceled)

Licensee
Edfel J Rivera Rivera

Address
138 Winston Churchill PMB 805
San Juan, PR 00926
18.3486, -66.0539 (ZIP center) · Grid FK68xi · CQ 8 · ITU 11 · map ↗

FRN
0023211469

Last granted
Dec 16, 2013

Effective
Feb 3, 2014

Last action
Feb 22, 2014
FCC actions (5)
- Feb 22, 2014 — License canceled LICAN
- Feb 3, 2014 — License modified LIMOD
- Dec 30, 2013 — License modified LIMOD
- Dec 16, 2013 — License issued LIISS
- Dec 16, 2013 — Systematic call sign granted SYSGRT

Address history

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

Seen Jan 22, 2019 → Sep 27, 2026 · 14 snapshots · as KP4AJ
Edfel J Rivera Rivera
P.O. Box 372135, Cayey, PR 00737-2135
Seen Mar 28, 2014 → Sep 27, 2026 · 40 snapshots · as WP4OVR
Edfel J Rivera Rivera
138 Winston Churchill PMB 805, San Juan, PR 00926
18.3486, -66.0539 (ZIP center) · Grid FK68xi · CQ 8 · ITU 11 · map ↗
Seen May 19, 2015 → Sep 3, 2018 · 20 snapshots · as KP4AJ
Edfel J Rivera Rivera
P.O. Box 37-2135, Cayey, PR 00737

Previous holder: CARLOS O GONZALEZ TORRES

Held KP4AJ Sep 4, 1998 → Sep 4, 2008 · first licensed Sep 4, 1998 as KP4AJ · 1 license · no FRN on file (pre-2001 records)

KP4AJ Expired Advanced Sep 4, 1998 → Sep 4, 2008 (expired)

Licensee
CARLOS O GONZALEZ TORRES

Address
PO Box 859
OROCOVIS, PR 00720-0859
18.2166, -66.4237 (ZIP center) · Grid FK68sf · CQ 8 · ITU 11 · map ↗

Last granted
Sep 4, 1998

Effective
Sep 4, 1998

Last action
Sep 8, 2010
FCC actions (1)
- Sep 8, 2010 — License expired LIEXP

Address history

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

Seen Nov 7, 2004 → Sep 27, 2026 · 47 snapshots · as KP4AJ
CARLOS O GONZALEZ TORRES
PO Box 859
OROCOVIS, PR 00720-0859
18.2166, -66.4237 (ZIP center) · Grid FK68sf · CQ 8 · ITU 11 · map ↗

Vanity applications filed by KP4AJ

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 · Award	Applicant	Requested (in order)	Status
Filed Feb 4, 2014 Granted Nov 28, 2023 0006134456	WP4OVR · Edfel J Rivera Rivera · Amateur Extra 138 Winston Churchill PMB 805, San Juan, PR 00926 18.3486, -66.0539 (ZIP center) · Grid FK68xi · CQ 8 · ITU 11 · map ↗	1.KP4AJ ✓ granted 2.KP4BE held 3.KP4ET held 4.KP4BA 5.KP4GT available	Granted got KP4AJ

Others requesting KP4AJ

1 application listed KP4AJ as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Feb 4, 2014	Feb 22, 2014	WP4OVR · Edfel J Rivera Rivera · San Juan, PR	1	Granted

📡 On the air: APRS, digital & WSPR spots

📤 Heard by others PSK Reporter

Heard by 3 stations (5 reports) · last 4 hr ago · FT8 · grid FK68WD

6m · 3

Farthest: KM4RK, 1,362 miles on 6m FT8 (-16 dB)

PSK Reporter map →

📥 Hearing others PSK Reporter

Heard 2 stations (2 reports) · last 18 hr ago · FT8 · grid FK68wd

6m · 2

Farthest: KM4RK, 1,362 miles on 6m FT8 (-19 dB)

PSK Reporter map →