N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 5, 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

KB4MRU HAM

Club licensed since 2025 (1 yr) first licensed 2013 KB4MRU since 2026 · previously KO6LPU, KK6CIQ Stanford, CA

🔒 Not available — currently licensed, through Jan 3, 2036. If it isn't renewed, it opens for vanity requests Jan 4, 2038.

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

📝 KB4MRU has filed vanity applications before — latest filed Dec 15, 2025 · what was requested

Currently held by BAY AREA MOUNTAIN RESCUE UNIT · 2 holders on record

Current holder: BAY AREA MOUNTAIN RESCUE UNIT

Held KB4MRU Jan 3, 2026 → present · first licensed Feb 8, 2013 as KK6CIQ · 4 licenses · FRN 0004438362

KB4MRU Active Club / other · vanity Jan 3, 2026 → expires Jan 3, 2036

Licensee
BAY AREA MOUNTAIN RESCUE UNIT

Address
Attn: Randall W Chinn
PO Box 19184
STANFORD, CA 94309

FRN
0004438362

Previous call
KO6LPU

Trustee
KK6UOX

Last granted
Jan 3, 2026

Effective
Jan 3, 2026

Last action
Jan 3, 2026
FCC actions (2)
- Jan 3, 2026 — Vanity call sign granted VANGRT
- Jan 3, 2026 — License issued LIISS
KO6LPU Canceled Club / other Dec 12, 2025 → Jan 3, 2026 (canceled)

Licensee
BAY AREA MOUNTAIN RESCUE UNIT

Address
Attn: Randall W Chinn
PO Box 19184
STANFORD, CA 94309

FRN
0004438362

Trustee
KK6UOX

Last granted
Dec 12, 2025

Effective
Dec 12, 2025

Last action
Jan 3, 2026
FCC actions (3)
- Jan 3, 2026 — License canceled LICAN
- Dec 12, 2025 — License issued LIISS
- Dec 12, 2025 — Systematic call sign granted SYSGRT
KB4MRU Expired Club / other · vanity Mar 5, 2013 → Mar 5, 2023 (expired)

Licensee
Bay Area Mountain Rescue Unit

Address
Attn: Christopher A Kantarjiev
PO Box 19184
Stanford, CA 94309

FRN
0004438362

Previous call
KK6CIQ

Trustee
K6DBG

Last granted
Mar 5, 2013

Effective
Mar 5, 2013

Last action
Mar 6, 2025
FCC actions (3)
- Mar 6, 2025 — License expired LIEXP
- Mar 5, 2013 — Vanity call sign granted VANGRT
- Mar 5, 2013 — License issued LIISS
KK6CIQ Canceled Club / other Feb 8, 2013 → Mar 5, 2013 (canceled)

Licensee
Bay Area Mountain Rescue Unit

Address
Attn: Christopher A Kantarjiev
PO Box 19184
Stanford, CA 94309

FRN
0004438362

Trustee
K6DBG

Last granted
Feb 8, 2013

Effective
Feb 8, 2013

Last action
Mar 5, 2013
FCC actions (3)
- Mar 5, 2013 — License canceled LICAN
- Feb 8, 2013 — License issued LIISS
- Feb 8, 2013 — 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 Feb 18, 2013 → Oct 4, 2026 · 87 snapshots · as KK6CIQ
Bay Area Mountain Rescue Unit
Attn: Christopher A Kantarjiev
PO Box 19184
Stanford, CA 94309

Previous holder: DONALD A DEEM

Held KB4MRU Nov 21, 1994 → Nov 21, 2004 · first licensed Nov 21, 1994 as KB4MRU · 1 license · no FRN on file (pre-2001 records)

KB4MRU Expired Novice Nov 21, 1994 → Nov 21, 2004 (expired)

Licensee
DONALD A DEEM

Address
1209 ARBOR VISTA DR NE
ATLANTA, GA 30329
33.8272, -84.3221 (ZIP center) · Grid EM73ut · CQ 5 · ITU 8 · map ↗

Last granted
Nov 21, 1994

Effective
Nov 21, 1994

Last action
Mar 13, 2024
FCC actions (1)
- Nov 22, 2006 — License expired LIEXP

Address history

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

Seen Nov 7, 2004 → Oct 4, 2026 · 48 snapshots · as KB4MRU
DONALD A DEEM
1209 ARBOR VISTA DR NE, ATLANTA, GA 30329
33.8272, -84.3221 (ZIP center) · Grid EM73ut · CQ 5 · ITU 8 · map ↗

Vanity applications filed by KB4MRU

Calls this licensee has asked the FCC for, newest first, in their order of preference. The FCC processes applications 18 days after filing; "likely award" is our estimate from every pending application in filing order.

Filed · Award	Applicant	Requested (in order)	Status
Filed Dec 15, 2025 Granted Mar 5, 2013 0011831041	KO6LPU · BAY AREA MOUNTAIN RESCUE UNIT · Attn: Randall W Chinn · PO Box 19184 · STANFORD, CA 94309	1.KB4MRU ✓ granted	Granted got KB4MRU
Filed Feb 15, 2013 Granted Mar 5, 2013 0005651192	KK6CIQ · Bay Area Mountain Rescue Unit · Attn: Christopher A Kantarjiev · PO Box 19184 · Stanford, CA 94309	1.KB4MRU ✓ granted 2.WB4MRU	Granted got KB4MRU

Others requesting KB4MRU

2 applications listed KB4MRU as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Dec 15, 2025	Jan 2, 2026	KO6LPU · BAY AREA MOUNTAIN RESCUE UNIT · STANFORD, CA	1	Granted
Feb 15, 2013	Mar 5, 2013	KK6CIQ · Bay Area Mountain Rescue Unit · Stanford, CA	1	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KB4MRU in the last 24 hours. They show up here within seconds of KB4MRU beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.