N9TPB
FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 14, 2026) · next update today 8:30 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)KI4SD HAM
✅ Available for a vanity request — free since Sep 8, 2016.
2x2 call: Advanced and Amateur Extra licensees can request it.
No pending applications list it.
Last requested May 30, 2023 as choice 1: not granted, that applicant got KI4SDC instead.
Last requested May 30, 2023 as choice 1: not granted, that applicant got KI4SDC instead.
📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH
Not currently held · 1 holder on record · available since Sep 8, 2016
Previous holder: IRVING HEILPERN
Held KI4SD Sep 11, 1984 → Sep 7, 2014 · first licensed Sep 11, 1984 as KI4SD · 1 license · FRN 0011354123
-
- Licensee
- IRVING HEILPERN
- Address
- PO Box 440832
MIAMI, FL 33144
- FRN
- 0011354123
- Last granted
- Aug 10, 2004
- Effective
- Aug 10, 2004
- Last action
- Sep 8, 2016
FCC actions (3)
- Sep 8, 2016 — License expired LIEXP
- Aug 10, 2004 — License renewed LIREN
- Aug 9, 2004 — FCC action LTSFRN
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 Oct 26, 1995 → Apr 17, 2003 · 15 discs
KI4SD · Advanced · issued Sep 7, 1994, expires Sep 7, 2004
IRVING HEILPERN
PO BOX 440832, MIAMI, FL 33144 - Seen May 12, 1995 · 1 disc
KI4SD · Advanced · issued Sep 7, 1994, expires Sep 7, 2004
IRVING HEILPERN
BOX 440832, MIAMI, FL 33144 - Seen Oct 31, 1994 · 1 disc
KI4SD · Advanced · issued Sep 7, 1994, expires Sep 7, 2004
IRVING HEILPERN
440832, MIAMI, FL 33144 - Seen Sep 9, 1993 → May 3, 1994 · 2 discs
KI4SD · Advanced · issued Sep 11, 1984, expires Sep 11, 1994 · previously KB4ICX (General)
IRVING HEILPERN
POB 440832, MIAMI, FL 33144
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
- Seen Nov 7, 2004 → Oct 11, 2026 · 49 snapshots · as KI4SD
IRVING HEILPERN
PO Box 440832
MIAMI, FL 33144
KI4SD 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.
Others Requesting KI4SD
1 application listed KI4SD as a choice, newest first.
| Filed | Award | Applicant | Choice # | KI4SD | Result |
|---|---|---|---|---|---|
| May 30, 2023 | Jun 17, 2023 | KQ4IUQ · South Dade Gmrs Club · Miami, FL | 1 | Not granted | They got KI4SDC (choice 2) |
📡 On the Air: APRS, Digital & WSPR Spots
No APRS positions, PSK Reporter reports or WSPR spots for KI4SD in the last 24 hours. They show up here within seconds of KI4SD beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.