N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 19, 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 · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)

K4DGO HAM

✅ Available for a vanity request — free since Jul 4, 2022.

1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it. No pending applications list it.
Last requested Oct 17, 2005 as choice 1: granted.

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

Not currently held · 1 holder on record · available since Jul 4, 2022

Previous holder: DAVID G O BRIEN

Held K4DGO Jan 10, 2006 → Jul 3, 2020 · first licensed Nov 26, 1985 as KD2QA · 3 licenses · FRN 0003548922
📖 In the printed callbooks since 1974 as WA2YFL, before the FCC's online records

WA2YFL Active Advanced · vanity Jul 3, 2020 → expires Jul 3, 2030

Licensee
DAVID G O BRIEN

Address
Attn: David O'Brien
478 CLOVER STREET
ROCHESTER, NY 14610-2328
43.1484, -77.5352 (street) · Grid FN13fd · CQ 5 · ITU 8 · map ↗

FRN
0003548922

Previous call
K4DGO

Last granted
Jul 3, 2020

Effective
Jul 3, 2020

Last action
Jul 3, 2020
FCC actions (2)
- Jul 3, 2020 — Vanity call sign granted VANGRT
- Jul 3, 2020 — License issued LIISS
📦 Moved: Marshville, NC → Rochester, NY

K4DGO Canceled Advanced · vanity Jan 10, 2006 → Jul 3, 2020 (canceled)

Licensee
DAVID G O BRIEN

Address
478 CLOVER STREET
ROCHESTER, NY 14610-2328
43.1484, -77.5352 (street) · Grid FN13fd · CQ 5 · ITU 8 · map ↗

FRN
0003548922

Previous call
KD2QA

Last granted
Aug 8, 2017

Effective
Aug 8, 2017

Last action
Jul 3, 2020
FCC actions (4)
- Jul 3, 2020 — License canceled LICAN
- Aug 8, 2017 — License renewed LIREN
- Jan 10, 2006 — Vanity call sign granted VANGRT
- Jan 10, 2006 — License issued LIISS
KD2QA Canceled Advanced Nov 26, 1985 → Jan 10, 2006 (canceled)

Licensee
DAVID G O BRIEN

Address
5621 OLD KENNEDY FORD ROAD
MARSHVILLE, NC 28103
34.9990, -80.3515 (ZIP center) · Grid EM94tx · CQ 5 · ITU 8 · map ↗

FRN
0003548922

Last granted
Sep 28, 2005

Effective
Sep 28, 2005

Last action
Jan 10, 2006
FCC actions (4)
- Jan 10, 2006 — License canceled LICAN
- Sep 28, 2005 — License renewed LIREN
- Mar 6, 2003 — Administrative update LIAUA
- Jun 15, 2001 — Administrative update LIAUA

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.

Seen Apr 17, 2003 · 1 disc
KD2QA · Advanced · issued Mar 6, 2003, expires Sep 26, 2005 · previously WA2YFL
DAVID G O BRIEN
3204 CLARKDALE STREET, MONROE, NC 28110
Seen Nov 1, 2001 → Oct 25, 2002 · 3 discs
KD2QA · Advanced · issued Jun 15, 2001, expires Sep 26, 2005 · previously WA2YFL
DAVID G. O BRIEN
PO BOX 186, CLIMAX, NC 27233
Seen Oct 26, 1995 → Apr 13, 2001 · 11 discs
KD2QA · Advanced · issued Sep 26, 1995, expires Sep 26, 2005
DAVID G. O BRIEN
PO BOX 11083, RIVIERA BEACH, FL 33419-1083
Seen May 12, 1995 · 1 disc
KD2QA · Advanced · issued Aug 17, 1994, expires Nov 26, 1995
DAVID G O BRIEN
BOX 11083, RIVIERA BEACH, FL 33419-1083
Seen Oct 31, 1994 · 1 disc
KD2QA · Advanced · issued Aug 17, 1994, expires Nov 26, 1995
DAVID G O BRIEN
11083, RIVIERA BEACH, FL 33419-1083
Seen Sep 9, 1993 → May 3, 1994 · 2 discs
KD2QA · Advanced · issued Nov 26, 1985, expires Nov 26, 1995 · previously WA2YFL
DAVID G O BRIEN
1453 SOUTH AVE, ROCHESTER, NY 14620

Address history

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

Seen Sep 5, 2017 → Oct 18, 2026 · 37 snapshots · as K4DGO
DAVID G O BRIEN
478 CLOVER STREET, ROCHESTER, NY 14610-2328
43.1484, -77.5352 (street) · Grid FN13fd · CQ 5 · ITU 8 · map ↗
Seen May 27, 2010 → Oct 18, 2026 · 76 snapshots · as KD2QA
DAVID G O BRIEN
5621 OLD KENNEDY FORD ROAD, MARSHVILLE, NC 28103
34.9990, -80.3515 (ZIP center) · Grid EM94tx · CQ 5 · ITU 8 · map ↗
Seen Nov 7, 2004 · 1 snapshot · as KD2QA
DAVID G O BRIEN
3204 CLARKDALE STREET, MONROE, NC 28110
35.0660, -80.5091 (ZIP center) · Grid EM95rb · CQ 5 · ITU 8 · map ↗

K4DGO 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.

1994 · 1 edition
K4DGO · class E
Harry W Allen
2109 Bream Ln, Soddy-Daisy, TN 37379
1994 p.543
1993 · 1 edition
K4DGO · class E
Harry W Allen
1109 Bream Ln, Soddy-Daisy, TN 37379
1993 p.515
1971 · 1 edition
K4DGO · class G
Robert G Fox
4903 Gulf Dr, Holmes Bch 33509 Fl
Fall 1971 p.236
1970 · 1 edition
K4DGO · class G
Robert G Fox
4903 Gulf Or, Holmes Bch 33509 Fl
Spring 1970 p.242
1960 · 1 edition
K4DGO
David E. Taylor
1802 E. Holly St, Goldsboro N C
Winter 1960 p.222

Others Requesting K4DGO

1 application listed K4DGO as a choice, newest first.

Filed	Award	Applicant	Choice #	K4DGO	Result
Oct 17, 2005	Nov 4, 2005	KD2QA · DAVID G O BRIEN · MARSHVILLE, NC	1	Granted	Granted this call

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for K4DGO in the last 24 hours. They show up here within seconds of K4DGO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.