N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 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

KP4AOB HAM

General class licensed since 2006 (20 yrs) KP4AOB since 2006 · previously WP4NRH Bayamon, PR

🔒 Not available — currently licensed, through May 27, 2036. If it isn't renewed, it opens for vanity requests May 28, 2038.

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

📝 KP4AOB has filed vanity applications before — latest filed Mar 20, 2006 · what was requested

Currently held by ARTURO OTERO-BRACERO · 1 holder on record

Current holder: ARTURO OTERO-BRACERO

Held KP4AOB Apr 7, 2006 → present · first licensed Feb 21, 2006 as WP4NRH · 2 licenses · FRN 0014702740

📦 Moved: San Juan, PR → Bayamon, PR

KP4AOB Active General · vanity Apr 7, 2006 → expires May 27, 2036

Licensee
ARTURO OTERO-BRACERO

Address
PO Box 3977
Bayamon, PR 00958

FRN
0014702740

Previous call
WP4NRH (Technician)

Last granted
May 27, 2026

Effective
May 27, 2026

Last action
May 27, 2026
FCC actions (6)
- May 27, 2026 — License renewed LIREN
- Jan 9, 2016 — License renewed LIREN
- Apr 17, 2013 — Administrative update LIAUA
- Oct 26, 2009 — License modified LIMOD
- Apr 7, 2006 — Vanity call sign granted VANGRT
- Apr 7, 2006 — License issued LIISS
WP4NRH Canceled Technician Feb 21, 2006 → Apr 7, 2006 (canceled)

Licensee
ARTURO OTERO-BRACERO

Address
PO Box 9022821
SAN JUAN, PR 00902

FRN
0014702740

Last granted
Feb 21, 2006

Effective
Feb 21, 2006

Last action
Apr 7, 2006
FCC actions (3)
- Apr 7, 2006 — License canceled LICAN
- Feb 21, 2006 — License issued LIISS
- Feb 21, 2006 — 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 Oct 22, 2013 → Oct 4, 2026 · 39 snapshots · as KP4AOB
ARTURO OTERO-BRACERO
PO Box 3977
Bayamon, PR 00958
Seen May 27, 2010 → Oct 4, 2026 · 55 snapshots · as WP4NRH
ARTURO OTERO-BRACERO
PO Box 9022821
SAN JUAN, PR 00902

Vanity applications filed by KP4AOB

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 Mar 20, 2006 Granted May 27, 2026 0002532350	WP4NRH · ARTURO OTERO-BRACERO · Technician PO Box 9022821 · SAN JUAN, PR 00902	1.KP4AOB ✓ granted 2.KP4AO held 3.KP4TL held 4.KP4A held	Granted got KP4AOB

Others requesting KP4AOB

3 applications listed KP4AOB as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Apr 27, 2026	May 15, 2026	WP4TSU · JOSE A COLON · TOA ALTA, PR	6	Dismissed
Apr 27, 2026	May 15, 2026	WP4TSU · JOSE A COLON · TOA ALTA, PR	7	Granted
Mar 20, 2006	Apr 7, 2006	WP4NRH · ARTURO OTERO-BRACERO · SAN JUAN, PR	1	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KP4AOB in the last 24 hours. They show up here within seconds of KP4AOB beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.