N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 15, 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 · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)

KO4DN HAM

Amateur Extra class licensed since 1993 (33 yrs) Tallahassee, FL Grid EM70wk Active on 2 nets LoTW user eQSL AG 83 repeaters within 50 mi

🔒 Not available — currently licensed, through Sep 21, 2033. If it isn't renewed, it opens for vanity requests Sep 22, 2035.

📬 QSL: LoTW user · last upload Sep 29, 2026 · eQSL AG member · QRZ · HamQTH

Currently held by CHRISTOPHER R PANDOLFI · 1 holder on record

🗓 Active on 2 nets · last heard Oct 9, 2026

Current holder: CHRISTOPHER R PANDOLFI

Held KO4DN Sep 21, 1993 → present · first licensed Sep 21, 1993 as KO4DN · 1 license · FRN 0009613035
📖 In the printed callbooks since 1984 as KA4YLU, before the FCC's online records

KO4DN Active Amateur Extra Sep 21, 1993 → expires Sep 21, 2033

Licensee
CHRISTOPHER R PANDOLFI

Address
2112 Portsmouth Cir.
Tallahassee, FL 32311
30.4181, -84.1352 (street) · Grid EM70wk · CQ 5 · ITU 8 · map ↗

FRN
0009613035

Previous call
KA4YLU (Advanced)

Last granted
Jul 1, 2023

Effective
Jul 1, 2023

Last action
Jul 1, 2023
FCC actions (4)
- Jul 1, 2023 — License renewed LIREN
- Jan 17, 2018 — Administrative update LIAUA
- Aug 31, 2013 — License renewed LIREN
- Sep 23, 2003 — License renewed LIREN

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 Sep 9, 1993 → Apr 17, 2003 · 19 discs
KO4DN · Amateur Extra · issued Sep 21, 1993, expires Sep 21, 2003 · previously KA4YLU (Advanced)
CHRISTOPHER R. PANDOLFI
RT 35 BOX 5644, TALLAHASSEE, FL 32310

Address history

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

Seen May 7, 2018 → Oct 11, 2026 · 18 snapshots · as KO4DN
CHRISTOPHER R PANDOLFI
2112 Portsmouth Cir., Tallahassee, FL 32311
30.4181, -84.1352 (street) · Grid EM70wk · CQ 5 · ITU 8 · map ↗
Seen Nov 7, 2004 → Jan 2, 2018 · 31 snapshots · as KO4DN
CHRISTOPHER R PANDOLFI
489 Bob Miller Rd, Crawfordville, FL 32327
30.1815, -84.3027 (ZIP center) · Grid EM70ue · CQ 5 · ITU 8 · map ↗

KO4DN 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.

1994 → 1995 · 2 editions
KO4DN · class E
Christopher R Pandolfi
Rt 35 Box 5644, Tallahassee, FL 32310
1994 p.547, 1995 p.608
1990 → 1992 · 2 editions
KO4DN · class A
Allen M Caesar
1203 N Amelia, Sterting Park, VA 22170
Winter 1990 p.437, Winter 1992 p.488

Nets

Net	When	Frequency	Role	Times	Last
Leon County ARES Net (W9ARO-L)	Tue 8:00 PM ET	147.030	Checked in	1	2026-10-09
K4TLH News_Info Net (W9ARO-L)	Thu 6:45 PM · Thu 7:00 PM ET	146.655	Checked in	1	2026-09-24

From nets logged with NetLogger since the start of collection.

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for KO4DN in the last 24 hours. They show up here within seconds of KO4DN beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 Miles

83 repeaters within 50 miles of this address, most active first · sort: closest · most active · map these & export for a radio →

● confirmed on the air · ● probably · ● reported off the air · ● unknown · ◉ this license · ring = 50 miles · click a dot for the repeater's page

● confirmed on the air · ● probably · ● reported off the air · no dot = unknown (hover a dot for the evidence)

Miles	Call	Name	Output	Offset	Tone	Mode	Networks	Activity	Location
6.2	K4TLH	Tallahassee Stat K4TLH	443.5000	+5	TONE 94.8	FM (analog)	🗓 1 net	1 net · 130 check-ins · 37 stations	Tallahassee, FL
6.2	K4TLH	Tallahassee K4TLH	53.0300	-1	TSQL 94.8	FM (analog)	🗓 1 net	1 net · 130 check-ins · 37 stations	Tallahassee, FL
8.8	K4TLH	Tallahassee K4TLH	146.9100	-0.6	TSQL 94.8	FM (analog) (FM,P25)	🗓 1 net	1 net · 130 check-ins · 37 stations	Tallahassee, FL
8.8	K4TLH	Tallahassee K4TLH	147.0300	+0.6	TONE 94.8	FM (analog)	🗓 1 net	1 net · 130 check-ins · 37 stations	Tallahassee, FL
8.8	K4TLH	Tallahassee K4TLH	442.1000	+5	TSQL 94.8	FM (analog)	🗓 1 net	1 net · 130 check-ins · 37 stations	Tallahassee, FL
8.8	K4TLH	Tallahassee K4TLH	444.8000	+5	TSQL 94.8	FM (analog) (C4FM,FM)	🗓 1 net	1 net · 130 check-ins · 37 stations	Tallahassee, FL
9.3	K4TLH	Wacissa K4TLH	147.0000	+0.6	TONE 94.8	FM (analog)	🗓 1 net	1 net · 130 check-ins · 37 stations	Wacissa, FL
10.0	K4TLH	Tallahassee K4TLH	29.6600	-0.1	TSQL 107.2	FM (analog)	🗓 1 net	1 net · 130 check-ins · 37 stations	Tallahassee, FL
17.1	K4TLH	Tallahassee K4TLH	442.8500	+5	TSQL 94.8	FM (analog) (C4FM,FM)	🗓 1 net	1 net · 130 check-ins · 37 stations	Tallahassee, FL
8.8	AE4S	Tallahassee AE4S	146.6550	-0.6	TSQL 94.8	FM (analog) (FM,P25)	🗓 1 net	1 net · 40 check-ins · 21 stations	Tallahassee, FL
8.8	AE4S	Tallahassee AE4S	443.9500	+5	TSQL 94.8	FM (analog) (FM,P25)	🗓 1 net	1 net · 40 check-ins · 21 stations	Tallahassee, FL
4.4	N4PG	Tallahassee N4PG	442.8500	+5	none	FM (analog)		—	Tallahassee, FL
6.2	KA4EOC Offline	Tallahassee Stat KA4EOC	147.2850	+0.6	TSQL 94.8	FM (analog)		—	Tallahassee, FL
6.3	AG4UU	Tallahasee AG4UU	443.5000	+5	TONE 94.8	FM (analog)		—	Tallahasee, FL
7.0	N4NKV	Tallahassee HCA N4NKV	444.4000	+5	TONE 131.8	FM (analog)		—	Tallahassee, FL
7.4	W4JMF	Tallahassee W4JMF BM	441.8250	+5	CC1	DMR	BrandMeister 311293	—	Tallahassee, FL
7.4	KD4MOJ	Tallahassee KD4MOJ MARC	444.1500	+5	CC1	DMR	DMR-MARC	—	Tallahassee, FL
8.0	KD4MOJ	Tallahassee Mem KD4MOJ	444.0000	+5	TONE 94.8	FM (analog)		—	Tallahassee, FL
8.7	NX4DN	Tallahassee NX4DN NX4DN	443.1375	+5	CC1	DMR	NX4DN	—	Tallahassee, FL
8.8	NF4DG	Tallahassee NF4DG	146.8350	-0.6	none	FM (analog) (DV,FM)		—	Tallahassee, FL
8.8	NF4DG	Tallahassee NF4DG	443.4500	+5	none	FM (analog) (DV,FM)		—	Tallahassee, FL
8.8	NF4DG	Tallahassee NF4DG	1293.0000	-20	none	FM (analog) (DV,FM)		—	Tallahassee, FL
8.8	N4PG	Tallahassee N4PG	146.6100	-0.6	TONE 203.5	FM (analog)		—	Tallahassee, FL
9.3	NX4DN	Wacissa NX4DN	444.0500	+5	none	FM (analog)		—	Wacissa, FL
9.5	NX4DN	Tallahassee NX4DN	444.1750	+5	TONE 94.8	FM (analog)		—	Tallahassee, FL
9.9	KS4JW	Tallahassee KS4JW	1291.5000	-20	TONE 88.5	FM (analog)		—	Tallahassee, FL
9.9	KS4JW	Tallahassee KS4JW	146.8650	-0.6	TONE 94.8	FM (analog)		—	Tallahassee, FL
13.0	KJ4PYE	Tallahassee KJ4PYE	444.1500	+5	none	FM (analog)		—	Tallahassee, FL
13.4	KJ4G	Tallahassee KJ4G	443.4000	+5	TONE 131.8	FM (analog)		—	Tallahassee, FL
17.1	K4WAK	Craw Riversink E K4WAK	145.4500	-0.6	TSQL 94.8	FM (analog) (C4FM,FM)		—	Crawfordville, FL
17.9	KM4TTS	Monticello KM4TTS BM	145.4300	-0.6	CC4	DMR	BrandMeister 311454	—	Monticello, FL
18.1	WX4JEF	Monticello WX4JEF	145.4300	-0.6	TSQL 94.8	FM (analog)		—	Monticello, FL
20.7	KN4NN	Crawfordville KN4NN	147.2550	+0.6	TONE 94.8	FM (analog)		—	Crawfordville, FL
20.8	N4UAV	Crawfordville N4UAV AllStar	446.1000	simplex	TONE 110.9	FM (analog)	AllStar 41434	—	Crawfordville, FL
20.9	NX4DN	Metcalfe NX4DN NX4DN	444.1375	+5	CC1	DMR	NX4DN	—	Metcalfe, GA
21.1	K4WAK	Crawfordvil WCSO K4WAK EchoLink	444.4500	+5	TSQL 94.8	FM (analog)	EchoLink 445259	—	Crawfordville, FL
21.4	W4UCJ	Metcalfe W4UCJ	147.1950	+0.6	TSQL 141.3	FM (analog)		—	Metcalfe, GA
21.9	W4EAF	Gadsden W4EAF	147.1650	+0.6	TONE 94.8	FM (analog)		—	Gadsden, FL
22.1	KQ4YKF	Havana KQ4YKF BM	438.9000	-5	CC1	DMR	BrandMeister 3213081	—	Havana, FL
27.9	KE4URL	Reno KE4URL	145.1700	-0.6	TONE 141.3	FM (analog)		—	Reno, GA
30.0	KS4JW	Tallahassee KS4JW	442.0000	+5	TONE 151.4	FM (analog)		—	Tallahassee, FL
30.1	W4UCJ	Thomasville W4UCJ	145.3700	-0.6	TONE 141.3	FM (analog)		—	Thomasville, GA
30.1	W4UCJ	Thomasville W4UCJ	442.6000	+5	TONE 141.3	FM (analog)		—	Thomasville, GA
30.4	W4UCJ	Thomasville W4UCJ	147.0600	+0.6	none	FM (analog)		—	Thomasville, GA
33.7	W4UCJ	Boston W4UCJ	147.2400	+0.6	TONE 141.3	FM (analog)		—	Boston, GA
35.5	N4SVC	Lake City N4SVC	53.3900	-0.5	none	FM (analog)		—	Lake City, FL
35.6	K4III	Perry K4III	444.3000	+5	TONE 100.0	FM (analog)		—	Perry, FL
35.7	W4BNI	Perry W4BNI	51.6600	-0.5	none	FM (analog)		—	Perry, FL
36.5	K4GFD	Greensboro K4GFD BM	444.9875	+5	CC1	DMR	DMR-MARC BrandMeister	—	Greensboro, FL
37.7	NX4DN	Greensboro NX4DN	147.3900	+0.6	TONE 94.8	FM (analog)		—	Greensboro, FL
37.7	NX4DN	Greensboro NX4DN EchoLink	444.1250	+5	TSQL 94.8	FM (analog)	EchoLink 6433	—	Greensboro, FL
37.7	NX4DN	Greensboro NX4DN NX4DN	444.9875	+5	CC1	DMR	NX4DN	—	Greensboro, FL
38.7	NX4DN	Chattahoochee NX4DN	443.0250	+5	CC?	DMR		—	Chattahoochee, FL
39.0	K4III	Perry K4III	444.1000	+5	TSQL 100.0	FM (analog) (FM,P25)		—	Perry, FL
39.1	K4III	Perry K4III	147.3750	+0.6	none	FM (analog) (FM,P25)		—	Perry, FL
39.2	K4III	Perry K4III	443.1000	+5	TSQL 94.8	FM (analog) (FM,P25)		—	Perry, FL
39.5	K4PRY	Perry K4PRY	145.3500	-0.6	TSQL 123.0	FM (analog)		—	Perry, FL
39.6	K4PRY	Perry K4PRY	146.9700	-0.6	TSQL 123.0	FM (analog)		—	Perry, FL
40.1	K4III	Perry K4III	927.6500	-25	none	FM (analog)		—	Perry, FL
41.0	KM4TTS	Madison KM4TTS	444.3000	+5	TONE 94.8	FM (analog) (FM,P25)		—	Madison, FL
42.2	WR4SG	Quitman WR4SG	224.3200	-1.6	TSQL 141.3	FM (analog)		—	Quitman, GA
42.4	K4NRD	Madison K4NRD	444.3000	+5	TSQL 94.8	FM (analog)		—	Madison, FL
42.6	WA4NKL	Quitman WA4NKL	146.8800	-0.6	none	FM (analog)		—	Quitman, GA
42.6	WA4NKL	Quitman WA4NKL	444.6000	+5	TONE 141.3	FM (analog)		—	Quitman, GA
42.8	KM4TTS	Madison KM4TTS	145.1100	-0.6	TONE 123.0	FM (analog)		—	Madison, FL
43.2	W4FAO	Madison W4FAO BM	442.0000	+5	CC1	DMR	BrandMeister 310500	—	Madison, FL
45.7	NX4DN	Chattahoochee NX4DN NX4DN	441.1375	+5	CC1	DMR	NX4DN	—	Chattahoochee, FL
46.3	K4GFD	Chattahoochee K4GFD	444.9750	+5	TSQL 94.8	FM (analog)		—	Chattahoochee, FL
48.3	K4DBC	PINETTA K4DBC BM	439.0000	in 433.0000	CC1	DMR	BrandMeister 3179067	—	PINETTA, GA
49.1	no call listed Listed as SERA	Valdosta Florida	145.2300	-0.6	none	FM (analog)		—	Valdosta, FL
49.4	WR4SG	Valdosta WR4SG	145.2300	-0.6	TSQL 141.3	FM (analog)		—	Valdosta, GA
49.4	WR4SG	Valdosta WR4SG	224.7000	-1.6	TSQL 141.3	FM (analog)		—	Valdosta, GA
49.4	WR4SG	Valdosta WR4SG	441.3250	+5	TSQL 141.3	FM (analog)		—	Valdosta, GA
49.4	WR4SG	Valdosta WR4SG AllStar	443.3000	+5	TSQL 141.3	FM (analog)	AllStar 421090	—	Valdosta, GA
49.4	WR4SG	Valdosta WR4SG	927.4875	-25	TSQL 141.3	FM (analog)		—	Valdosta, GA
49.4	WR4SG	Valdosta WR4SG	1287.7000	-12	TSQL 141.3	FM (analog)		—	Valdosta, GA
49.4	WR4SG	Valdosta WR4SG	441.3000	+5	TSQL 141.3	FM (analog)		—	Valdosta, GA
49.4	WR4SG Offline	Valdosta WR4SG	443.2000	+5	TSQL 141.3	FM (analog)		—	Valdosta, GA
49.6	KE4PMP	Pelham WABW KE4PMP SE	441.8125	+5	CC1	DMR	SE	—	Pelham, GA
49.8	KM4TTS	Lee KM4TTS	442.0000	+5	TONE 123.0	FM (analog)		—	Lee, FL
49.8	KM4TTS	Lee KM4TTS	145.1900	-0.6	TSQL 123.0	FM (analog)		—	Lee, FL
49.8	W1JXG	Lee W1JXG	145.1100	-0.6	TSQL 123.0	FM (analog)		—	Lee, FL
49.9	no call listed Listed as SERA	Pelham Florida	441.8125	+5	none	FM (analog)		—	Pelham GA, FL