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, WIW5HDX HAM
✅ Available for a vanity request — free since Sep 14, 2018.
1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it.
No pending applications list it.
📬 QSL: LoTW user · last upload Jan 25, 2016 · not eQSL AG · QRZ · HamQTH
Not currently held · 1 holder on record · available since Sep 14, 2018
Previous holder: Christopher C Callahan
Held W5HDX Feb 14, 2015 → Sep 13, 2016 · first licensed Jul 29, 2011 as KF5MDZ · 3 licenses · FRN 0021056502
-
- Licensee
- Christopher C Callahan
- Address
- Attn: Christopher C Callahan
21101 Kingsland Blvd #331
Katy, TX 77450
- FRN
- 0021056502
- Previous call
- W5HDX (Technician)
- Last granted
- Aug 8, 2026
- Effective
- Aug 8, 2026
- Last action
- Aug 8, 2026
FCC actions (9)
- Aug 8, 2026 — License renewed LIREN
- Mar 10, 2026 — Administrative update LIAUA
- Oct 12, 2022 — Administrative update LIAUA
- Jul 12, 2022 — Administrative update LIAUA
- May 29, 2019 — Administrative update LIAUA
- Nov 9, 2018 — Administrative update LIAUA
- Nov 7, 2017 — Administrative update LIAUA
- Sep 13, 2016 — Vanity call sign granted VANGRT
- Sep 13, 2016 — License issued LIISS
-
- Licensee
- Christopher C Callahan
- Address
- Attn: Christopher C Callahan
20343 Decker Ridge Dr
Katy, TX 77449
- FRN
- 0021056502
- Previous call
- KF5MDZ (Technician)
- Last granted
- Feb 14, 2015
- Effective
- Feb 14, 2015
- Last action
- Sep 13, 2016
FCC actions (3)
- Sep 13, 2016 — License canceled LICAN
- Feb 14, 2015 — Vanity call sign granted VANGRT
- Feb 14, 2015 — License issued LIISS
-
- Licensee
- Christopher C Callahan
- Address
- 20343 Decker Ridge Dr
Katy, TX 77449
- FRN
- 0021056502
- Last granted
- Jul 29, 2011
- Effective
- Feb 1, 2012
- Last action
- Aug 8, 2026
FCC actions (4)
- Feb 14, 2015 — License canceled LICAN
- Feb 1, 2012 — License modified LIMOD
- Jul 29, 2011 — License issued LIISS
- Jul 29, 2011 — 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 → Oct 4, 2026 · 2 snapshots · as KF5MDZ
Christopher C Callahan
Attn: Christopher C Callahan
21101 Kingsland Blvd #331, Katy, TX 77450 - Seen Oct 17, 2011 → Oct 4, 2026 · 82 snapshots · as KF5MDZ
Christopher C Callahan
20343 Decker Ridge Dr, Katy, TX 77449 - Seen Apr 27, 2024 → Sep 25, 2025 · 10 snapshots · as KF5MDZ
Christopher C Callahan
Attn: Christopher C Callahan
11327 Elizabeth Brook Drive, Richmond, TX 77406 - Seen Apr 16, 2022 · 1 snapshot · as KF5MDZ
Christopher C Callahan
Attn: Chris Callahan
9711 South Mason Road Suite #125 Box 248, Richmond, TX 77407 - Seen Jan 22, 2019 → May 6, 2019 · 2 snapshots · as KF5MDZ
Christopher C Callahan
Attn: Chris Callahan
3 Slover Drive, Dayton, TX 77535 - Seen Jan 2, 2018 → Sep 3, 2018 · 3 snapshots · as KF5MDZ
Chris C Callahan 647
Attn: Chris Callahan
PO Box 77535
3 Slover Drive, Dayton, TX 77535 - Seen Nov 4, 2016 → Nov 11, 2017 · 7 snapshots · as KF5MDZ
Christopher C Callahan
Attn: Christopher C Callahan
2727 Commercial Center Blvd #327, Katy, TX 77494
Others requesting W5HDX
2 applications listed W5HDX as a choice, newest first.
| Filed | Award | Applicant | Choice # | Status |
|---|---|---|---|---|
| Jan 27, 2015 | Feb 14, 2015 | KF5MDZ · Christopher C Callahan · Katy, TX | 1 | Granted |
| Sep 13, 2000 | Oct 1, 2000 | KD5KRZ · James E Shafer · Sumrall, MS | 20 | Granted |
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for W5HDX in the last 24 hours. They show up here within seconds of W5HDX beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.