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
WP4OGH
Not currently held
· 1 holder on record
· available since Feb 13, 2013
Previous holder: Alberto Serrano Diaz jr
Held WP4OGH Oct 7, 2010 → Feb 12, 2011
· first licensed Oct 7, 2010 as WP4OGH
· 4 licenses · FRN 0020247417
KP4ASD
Active
Amateur Extra · vanity
Nov 2, 2019 → expires Nov 2, 2029
Licensee Alberto Serrano Diaz jr
Address Attn: Alberto Serrano Diaz PO Box 00730 82 CALLE MELERO Ponce, PR 00730
18.0130, -66.6219 (street) · Grid
FK68qa · CQ 8 · ITU 11 ·
map ↗
FRN 0020247417
Previous call KP4UHF (General)
Last granted Nov 2, 2019
Effective Dec 30, 2025
Last action Dec 30, 2025
FCC actions (3)
Dec 30, 2025 — FCC action LIAUA Nov 2, 2019 — Vanity call sign granted VANGRT Nov 2, 2019 — License issued LIISS
KP4UHF
Canceled
Amateur Extra · vanity
Apr 7, 2018 → Nov 2, 2019 (canceled)
Licensee Alberto Serrano Diaz jr
Address Attn: Alberto Serrano Diaz Calle Antares 4463 Urb Star Light Ponce, PR 00732
FRN 0020247417
Previous call KP4ASD (General)
Last granted Apr 7, 2018
Effective Apr 7, 2018
Last action Nov 2, 2019
FCC actions (3)
Nov 2, 2019 — License canceled LICAN Apr 7, 2018 — Vanity call sign granted VANGRT Apr 7, 2018 — License issued LIISS
KP4ASD
Canceled
Amateur Extra · vanity
Feb 12, 2011 → Apr 7, 2018 (canceled)
Licensee Alberto Serrano Diaz jr
Address Attn: Alberto Serrano Diaz Calle Antares 4463 Urb Star Light Ponce, PR 00732
FRN 0020247417
Previous call WP4OGH (General)
Last granted Feb 12, 2011
Effective Feb 12, 2011
Last action Apr 7, 2018
FCC actions (3)
Apr 7, 2018 — License canceled LICAN Feb 12, 2011 — Vanity call sign granted VANGRT Feb 12, 2011 — License issued LIISS
WP4OGH
Canceled
Amateur Extra
Oct 7, 2010 → Feb 12, 2011 (canceled)
Licensee Alberto Serrano Diaz
Address Calle Antares 4463 Urb Star Light Ponce, PR 00732
FRN 0020247417
Last granted Oct 7, 2010
Effective Feb 11, 2011
Last action Feb 12, 2011
FCC actions (5)
Feb 12, 2011 — License canceled LICAN Feb 11, 2011 — License modified LIMOD Nov 12, 2010 — License modified LIMOD Oct 7, 2010 — License issued LIISS Oct 7, 2010 — 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 Sep 27, 2026 · 1 snapshot · as KP4ASD
Alberto Serrano Diaz jr
Attn: Alberto Serrano Diaz PO Box 00730 82 CALLE MELERO, Ponce, PR 00730
18.0130, -66.6219 (street) · Grid
FK68qa · CQ 8 · ITU 11 ·
map ↗
Seen Oct 17, 2011 → Sep 27, 2026 · 117 snapshots · as WP4OGH
Alberto Serrano Diaz
Calle Antares 4463 Urb Star Light, Ponce, PR 00732
Data: FCC Universal Licensing System, amateur service · refreshed nightly
n9tpb.com · 73 de N9TPB