N9TPB FCC License Search

🕒 FCC license data updated yesterday 9:42 am CDT (FCC files through Sep 30, 2026) · next update today 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

W4LTC HAM

✅ Available for a vanity request — free since Jan 21, 2026.

1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it. No pending applications list it.

📬 QSL: LoTW user, last upload Feb 1, 2022 · eQSL AG member

Not currently held · 1 holder on record · available since Jan 21, 2026

Previous holder: William E Comfort

Held W4LTC Apr 29, 2022 → Jan 20, 2024 · first licensed Oct 4, 2021 as KO4TSA · 5 licenses · FRN 0007282692

W0VZ Active Amateur Extra · vanity Jan 20, 2024 → expires Jan 20, 2034

Licensee
William E Comfort

Address
Attn: William E Comfort
1051 Yunus Rd, Ste 150 #321
Durham, NC 27703
35.9406, -78.8551 (street) · Grid FM05nw · CQ 5 · ITU 8 · map ↗

FRN
0007282692

Previous call
W4LTC (General)

Last granted
Jan 20, 2024

Effective
Dec 13, 2025

Last action
Dec 13, 2025
FCC actions (5)
- Dec 13, 2025 — Administrative update LIAUA
- Sep 27, 2024 — Administrative update LIAUA
- May 16, 2024 — Administrative update LIAUA
- Jan 20, 2024 — Vanity call sign granted VANGRT
- Jan 20, 2024 — License issued LIISS
W4LTC Canceled Amateur Extra · vanity Apr 29, 2022 → Jan 20, 2024 (canceled)

Licensee
William E Comfort

Address
Attn: William Comfort
PO Box 12732
65 TW Alexander Dr
Durham, NC 27709
35.9201, -78.8671 (ZIP center) · Grid FM05nw · CQ 5 · ITU 8 · map ↗

FRN
0007282692

Previous call
W0VZ (General)

Last granted
Apr 29, 2022

Effective
Apr 18, 2023

Last action
Jan 20, 2024
FCC actions (4)
- Jan 20, 2024 — License canceled LICAN
- Apr 18, 2023 — Administrative update LIAUA
- Apr 29, 2022 — Vanity call sign granted VANGRT
- Apr 29, 2022 — License issued LIISS
W0VZ Canceled Amateur Extra · vanity Feb 5, 2022 → Apr 29, 2022 (canceled)

Licensee
William E Comfort

Address
2709 MAGNOLIA TREE LN
Durham, NC 27703
35.9613, -78.8052 (ZIP center) · Grid FM05ox · CQ 5 · ITU 8 · map ↗

FRN
0007282692

Previous call
W4LTC (General)

Last granted
Feb 5, 2022

Effective
Feb 5, 2022

Last action
Apr 29, 2022
FCC actions (3)
- Apr 29, 2022 — License canceled LICAN
- Feb 5, 2022 — Vanity call sign granted VANGRT
- Feb 5, 2022 — License issued LIISS
W4LTC Canceled Amateur Extra · vanity Oct 22, 2021 → Feb 5, 2022 (canceled)

Licensee
William E Comfort

Address
2709 MAGNOLIA TREE LN
Durham, NC 27703
35.9613, -78.8052 (ZIP center) · Grid FM05ox · CQ 5 · ITU 8 · map ↗

FRN
0007282692

Previous call
KO4TSA (General)

Last granted
Oct 22, 2021

Effective
Nov 9, 2021

Last action
Feb 5, 2022
FCC actions (5)
- Feb 5, 2022 — License canceled LICAN
- Nov 9, 2021 — License modified LIMOD
- Oct 28, 2021 — License modified LIMOD
- Oct 22, 2021 — Vanity call sign granted VANGRT
- Oct 22, 2021 — License issued LIISS
KO4TSA Canceled Technician Oct 4, 2021 → Oct 22, 2021 (canceled)

Licensee
William E Comfort

Address
2709 MAGNOLIA TREE LN
Durham, NC 27703
35.9613, -78.8052 (ZIP center) · Grid FM05ox · CQ 5 · ITU 8 · map ↗

FRN
0007282692

Last granted
Oct 4, 2021

Effective
Oct 4, 2021

Last action
Oct 22, 2021
FCC actions (3)
- Oct 22, 2021 — License canceled LICAN
- Oct 4, 2021 — License issued LIISS
- Oct 4, 2021 — 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 W0VZ
William E Comfort
Attn: William E Comfort
1051 Yunus Rd, Ste 150 #321, Durham, NC 27703
35.9406, -78.8551 (street) · Grid FM05nw · CQ 5 · ITU 8 · map ↗
Seen Apr 27, 2024 → Sep 27, 2026 · 12 snapshots · as W4LTC
William E Comfort
Attn: William Comfort
PO Box 12732
65 TW Alexander Dr, Durham, NC 27709
35.9201, -78.8671 (ZIP center) · Grid FM05nw · CQ 5 · ITU 8 · map ↗
Seen Apr 16, 2022 → Sep 27, 2026 · 38 snapshots · as KO4TSA
William E Comfort
2709 MAGNOLIA TREE LN, Durham, NC 27703
35.9613, -78.8052 (ZIP center) · Grid FM05ox · CQ 5 · ITU 8 · map ↗
Seen Nov 28, 2024 → Sep 25, 2025 · 7 snapshots · as W0VZ
William E Comfort
Attn: William Comfort
8311 Brier Creek Pkwy, Suite 105-172, Raleigh, NC 27617
35.9088, -78.7724 (ZIP center) · Grid FM05ov · CQ 5 · ITU 8 · map ↗

Others requesting W4LTC

12 applications listed W4LTC as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Feb 7, 2023	Feb 25, 2023	KQ4AOE · Laura Cardoza · North Port, FL	1	Dismissed
Apr 11, 2022	Apr 29, 2022	KO4ORZ · James D Williams · SEYMOUR, TN	1	Dismissed
Apr 11, 2022	Apr 29, 2022	W0VZ · William E Comfort · Durham, NC	1	Granted
Oct 4, 2021	Oct 22, 2021	KO4TSA · William E Comfort · Durham, NC	1	Granted
Sep 10, 2015	Sep 28, 2015	KM4MZR · Gregg A Shelton · Smithfield, VA	3	Granted
Mar 26, 2015	Apr 13, 2015	KM4JGP · Jack D Coleman · Hampshire, TN	11	Granted
May 30, 2014	Jun 17, 2014	KE0AMV · Shane F Liptak · Plattsmouth, NE	6	Granted
Sep 17, 2008	Oct 5, 2008	KJ4FVG · TIMOTHY CORDELL · CHATSWORTH, GA	6	Granted
Sep 17, 2008	Oct 5, 2008	KJ4FVG · TIMOTHY CORDELL · CHATSWORTH, GA	4	Granted
Dec 30, 2003	Jan 17, 2004	KC0RJM · James C W Wright · Colorado Springs, CO	7	Granted
Apr 15, 2002	May 3, 2002	KD5POG · GORDON C GREMILLION · IRVING, TX	13	Granted
Jun 13, 2001	Jul 1, 2001	KD4GVP · STEVEN P THIBODEAUX · Cocoa, FL	7	Dismissed

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for W4LTC in the last 24 hours. They show up here within seconds of W4LTC beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.