N9TPB
FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 2026) · next update today 9:45 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, WIKB3RWO HAM
✅ Available for a vanity request — free since Dec 3, 2010.
2x3 call: any licensee can request it.
No pending applications list it.
📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH
Not currently held · 1 holder on record · available since Dec 3, 2010
Previous holder: Interior Radio Club
Held KB3RWO Nov 6, 2008 → Dec 2, 2008 · first licensed Nov 6, 2008 as KB3RWO · 2 licenses · FRN 0018251165
-
- Licensee
- Interior Radio Club
- Address
- Attn: STEVEN A CAESAR
3 Maryland Ave
Rockville, MD 20850
- FRN
- 0018251165
- Previous call
- KB3RWO
- Trustee
- NH7C
- Last granted
- Jan 30, 2019
- Effective
- Jan 30, 2019
- Last action
- May 20, 2025
FCC actions (3)
- Jan 30, 2019 — License renewed LIREN
- Dec 2, 2008 — Vanity call sign granted VANGRT
- Dec 2, 2008 — License issued LIISS
-
- Licensee
- Interior Radio Club
- Address
- Attn: STEVEN A CAESAR
3 Maryland Ave
Rockville, MD 20850
- FRN
- 0018251165
- Trustee
- NH7C
- Last granted
- Nov 6, 2008
- Effective
- Nov 6, 2008
- Last action
- Dec 2, 2008
FCC actions (3)
- Dec 2, 2008 — License canceled LICAN
- Nov 6, 2008 — License issued LIISS
- Nov 6, 2008 — 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 May 27, 2010 → Oct 4, 2026 · 94 snapshots · as KB3RWO
Interior Radio Club
Attn: STEVEN A CAESAR
3 Maryland Ave, Rockville, MD 20850
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KB3RWO in the last 24 hours. They show up here within seconds of KB3RWO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.