N9TPB FCC License Search

🕒 FCC license data updated yesterday 7:15 am CDT (FCC files through Oct 5, 2026) · next update today 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

Christopher B Pfeifer

FRN 0031631419 · first licensed Dec 23, 2021 as KF0HNP · 3 licenses on record

📻 GMRS licenses on this FRN

GMRS call	Status	Name	Location	Granted	Expires
WRZV857	Active	Christopher B Pfeifer	Sioux Falls, SD	Dec 19, 2023	Dec 19, 2033

📝 FCC applications (15)

Received	File number	Service	Purpose	Status	Call
Aug 10, 2026	0012146656	GMRS	Administrative update	Granted
Aug 10, 2026	0012146622	HAM	Administrative update	Granted	W0JT
Aug 26, 2024	0011218972	HAM	Modification	Dismissed	W0CBP
Aug 12, 2024	0011196852	HAM	Modification	Granted	W0CBP
Dec 18, 2023	0010818591	GMRS	New license	Granted
Nov 24, 2023	0010789595	HAM	Modification	Dismissed	W0CBP
Oct 27, 2023	0010750335	HAM	Modification	Dismissed	W0CBP
Oct 11, 2023	0010726586	HAM	Modification	Dismissed	W0CBP
Sep 18, 2023	0010697269	HAM	Modification	Dismissed	W0CBP
Aug 29, 2023	0010674444	HAM	Modification	Dismissed	W0CBP
Aug 28, 2023	0010672911	HAM	Modification	Dismissed	W0CBP
Jul 20, 2022	0010137186	HAM	Modification	Granted	W0CBP
Jun 9, 2022	0010083871	HAM	Modification	Granted	KF0HNP
Apr 26, 2022	0010023775	HAM	Modification	Granted	KF0HNP
Dec 23, 2021	0009843644	HAM	New license	Granted	KF0HNP

Complete licensing history

📦 Moved: Pierre, SD → Sioux Falls, SD

W0JT Active Amateur Extra · vanity Aug 30, 2024 → expires Aug 30, 2034

Licensee
Christopher B Pfeifer

Address
5300 S Marion Rd #419
Sioux Falls, SD 57106
43.4975, -96.7917 (street) · Grid EN13ol · CQ 4 · ITU 7 · map ↗

FRN
0031631419

Previous call
W0CBP (General)

Last granted
Aug 30, 2024

Effective
Aug 11, 2026

Last action
Aug 11, 2026
FCC actions (3)
- Aug 11, 2026 — Administrative update LIAUA
- Aug 30, 2024 — Vanity call sign granted VANGRT
- Aug 30, 2024 — License issued LIISS
W0CBP Canceled Amateur Extra · vanity Jun 28, 2022 → Aug 30, 2024 (canceled)

Licensee
Christopher B Pfeifer

Address
2300 SD Hwy 1804
Pierre, SD 57501
44.5276, -100.3091 (ZIP center) · Grid DN94um · CQ 4 · ITU 7 · map ↗

FRN
0031631419

Previous call
KF0HNP (General)

Last granted
Jun 28, 2022

Effective
Jul 20, 2022

Last action
Aug 30, 2024
FCC actions (4)
- Aug 30, 2024 — License canceled LICAN
- Jul 20, 2022 — License modified LIMOD
- Jun 28, 2022 — Vanity call sign granted VANGRT
- Jun 28, 2022 — License issued LIISS
KF0HNP Canceled General Dec 23, 2021 → Jun 28, 2022 (canceled)

Licensee
Christopher B Pfeifer

Address
2300 SD Hwy 1804
Pierre, SD 57501
44.5276, -100.3091 (ZIP center) · Grid DN94um · CQ 4 · ITU 7 · map ↗

FRN
0031631419

Last granted
Dec 23, 2021

Effective
Apr 26, 2022

Last action
Jun 28, 2022
FCC actions (4)
- Jun 28, 2022 — License canceled LICAN
- Apr 26, 2022 — License modified LIMOD
- Dec 23, 2021 — License issued LIISS
- Dec 23, 2021 — 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 W0JT
Christopher B Pfeifer
5300 S Marion Rd #419, Sioux Falls, SD 57106
43.4975, -96.7917 (street) · Grid EN13ol · CQ 4 · ITU 7 · map ↗
Seen Apr 16, 2022 → Oct 4, 2026 · 33 snapshots · as KF0HNP
Christopher B Pfeifer
2300 SD Hwy 1804, Pierre, SD 57501
44.5276, -100.3091 (ZIP center) · Grid DN94um · CQ 4 · ITU 7 · map ↗

Repeaters within 50 miles

28 repeaters within 50 miles of this address, closest 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
2.5	KC0RFR	Sioux Falls KC0RFR	443.5000	+5	TONE 88.5	FM (analog) (FM,C4FM)		—	Sioux Falls, SD
3.6	KD0ZP	Sioux Falls Menl KD0ZP	444.8250	+5	TONE 103.5	FM (analog)		—	Sioux Falls, SD
3.7	W0FSD	Sioux Falls Menl W0FSD	223.8600	-1.6	TONE 146.2	FM (analog)		—	Sioux Falls, SD
4.2	WD0EXR	Sioux Falls WD0EXR BM	443.4000	+5	CC1	DMR	BrandMeister 310165	—	Sioux Falls, SD
4.3	N0RCY	Sioux Falls SD N0RCY BM	429.0000	-1	CC1	DMR	BrandMeister 3193241	—	Sioux Falls, SD, L0C, SD
4.4	W0ZML	Sioux Falls W0ZML AllStar	443.3000	+5	TONE 146.2	FM (analog) (DMR,FM)	AllStar 631740 BrandMeister 314644	—	Sioux Falls, SD
5.3	N4OGL	Sioux Falls N4OGL BM	446.5000	-5	CC1	DMR	BrandMeister 310677001	—	Sioux Falls, SD
5.6	KE0WPC	Sioux Falls KE0WPC AllStar	443.8000	+5	DCS 174	FM (analog)	AllStar 632880	—	Sioux Falls, SD
5.6	KD0ZP	Sioux Falls KD0ZP EchoLink	444.9000	+5	TONE 146.2	FM (analog)	EchoLink 74079	—	Sioux Falls, SD
6.3	W0ZWY	Sioux Falls W0ZWY	146.8950	-0.6	TONE 146.2	FM (analog)		—	Sioux Falls, SD
6.3	W0ZWY	Sioux Falls W0ZWY	442.7500	+5	none	D-STAR		—	Sioux Falls, SD
24.2	W0ZML	Moe W0ZML	443.4000	+5	TSQL 146.2	FM (analog)		—	Moe, SD
24.4	N0JPE	Fairview N0JPE IRLP	146.5600	simplex	TONE 67.0	FM (analog)	IRLP 7449 IRLP 7375	—	Fairview, SD
28.8	KA0VHV	Beresford KA0VHV	147.2400	+0.6	TONE 141.3	FM (analog)		—	Beresford, SD
31.7	KD0MC	Luverne KD0MC	147.1050	+0.6	TSQL 141.3	FM (analog)		—	Luverne, MN
33.9	W0SD	Turkey Ridge W0SD	444.9750	+5	TONE 146.2	FM (analog)		—	Turkey Ridge, SD
34.2	W0SD	Turkey Ridge W0SD	927.6000	-25	TONE 100.0	FM (analog)		—	Turkey Ridge, SD
34.7	W0SD	Salem W0SD IRLP	145.5100	simplex	TONE 146.2	FM (analog)	IRLP 7748	—	Salem, SD
34.7	W0SD	Salem W0SD	442.0750	+5	TONE 103.5	FM (analog)		—	Salem, SD
38.5	WG0F	Madison WG0F	442.7500	+5	none	D-STAR		—	Madison, SD
39.3	W0VHQ	Rock Valley Perk W0VHQ	147.3000	+0.6	TSQL 110.9	FM (analog) (C4FM,FM)		—	Rock Valley, IA
40.3	KB0WSV	Colman KB0WSV	443.2250	+5	TONE 146.2	FM (analog)		—	Colman, SD
42.0	W0DRK	Pipestone W0DRK	147.0750	+0.6	TONE 141.3	FM (analog)		—	Pipestone, MN
4.7	W0ZWY offline	Sioux Falls W0ZWY	444.2000	+5	TSQL 82.5	FM (analog) (FM,C4FM)		—	Sioux Falls, SD
6.1	K0LTN offline	Harrisburg McFar K0LTN	442.4000	+5	TONE 225.7	FM (analog)		—	Harrisburg, SD
38.6	KB0MRG offline	Madison KB0MRG	440.1750	+5	TONE 131.8	FM (analog)		—	Madison, SD
39.4	K0TGA offline	Flandreau K0TGA	146.9850	-0.6	TONE 146.2	FM (analog)		—	Flandreau, SD
49.4	W0OJY offline	Vermillion Cemen W0OJY	147.3750	+0.6	TONE 146.2	FM (analog)		—	Vermillion, SD

Vanity applications

Filed · Award	Applicant	Requested (in order)	Status
Filed Aug 26, 2024 Award date was Sep 13, 2024 0011218972	W0CBP · Christopher B Pfeifer · Amateur Extra 2300 SD Hwy 1804, Pierre, SD 57501 44.5276, -100.3091 (ZIP center) · Grid DN94um · CQ 4 · ITU 7 · map ↗	1.AL0Z available 2.AL0V available 3.AL0S available 4.KH0G available 5.WH0G held by Dhevsivanand Govender until Sep 30, 2035 6.KO0L held by JASON A POWELL until Sep 17, 2034 7.NQ0F held by David Kopstain until Oct 25, 2034	Dismissed
Filed Aug 12, 2024 Granted Aug 30, 2024 0011196852	W0CBP · Christopher B Pfeifer · Amateur Extra 2300 SD Hwy 1804, Pierre, SD 57501 44.5276, -100.3091 (ZIP center) · Grid DN94um · CQ 4 · ITU 7 · map ↗	1.KR0X held by MARC C MAYZES until Aug 30, 2034 2.W0JT ✓ granted 3.K0RG held by Henry J Lefkoff until Sep 14, 2034 4.W0XE held by David Grant until Oct 1, 2034	Granted got W0JT
Filed Nov 24, 2023 Award date was Dec 12, 2023 0010789595	W0CBP · Christopher B Pfeifer · Amateur Extra 2300 SD Hwy 1804, Pierre, SD 57501 44.5276, -100.3091 (ZIP center) · Grid DN94um · CQ 4 · ITU 7 · map ↗	1.K0ZT held by Morgann A Meland until Dec 12, 2033	Dismissed
Filed Oct 27, 2023 Award date was Nov 14, 2023 0010750335	W0CBP · Christopher B Pfeifer · Amateur Extra 2300 SD Hwy 1804, Pierre, SD 57501 44.5276, -100.3091 (ZIP center) · Grid DN94um · CQ 4 · ITU 7 · map ↗	1.KD0Z held by CHASE ELLISON until Nov 25, 2033	Dismissed
Filed Oct 11, 2023 Award date was Oct 29, 2023 0010726586	W0CBP · Christopher B Pfeifer · Amateur Extra 2300 SD Hwy 1804, Pierre, SD 57501 44.5276, -100.3091 (ZIP center) · Grid DN94um · CQ 4 · ITU 7 · map ↗	1.AA0C held by Thomas C Hughes until Oct 28, 2033	Dismissed
Filed Sep 18, 2023 Award date was Oct 6, 2023 0010697269	W0CBP · Christopher B Pfeifer · Amateur Extra 2300 SD Hwy 1804, Pierre, SD 57501 44.5276, -100.3091 (ZIP center) · Grid DN94um · CQ 4 · ITU 7 · map ↗	1.WH0G held by Dhevsivanand Govender until Sep 30, 2035 2.AL0Z available 3.WH0N available 4.NH0Y available 5.AL0O available 6.AL0P available 7.NH0I available	Dismissed
Filed Aug 29, 2023 Award date was Sep 16, 2023 0010674444	W0CBP · Christopher B Pfeifer · Amateur Extra 2300 SD Hwy 1804, Pierre, SD 57501 44.5276, -100.3091 (ZIP center) · Grid DN94um · CQ 4 · ITU 7 · map ↗	1.N0QS held by Donn S Fishbein until Sep 16, 2033	Dismissed
Filed Aug 28, 2023 Award date was Sep 15, 2023 0010672911	W0CBP · Christopher B Pfeifer · Amateur Extra 2300 SD Hwy 1804, Pierre, SD 57501 44.5276, -100.3091 (ZIP center) · Grid DN94um · CQ 4 · ITU 7 · map ↗	1.N0QS held by Donn S Fishbein until Sep 16, 2033	Dismissed
Filed Jun 9, 2022 Granted Jun 28, 2022 0010083871	KF0HNP · Christopher B Pfeifer · General 2300 SD Hwy 1804, Pierre, SD 57501 44.5276, -100.3091 (ZIP center) · Grid DN94um · CQ 4 · ITU 7 · map ↗	1.W0CBP ✓ granted	Granted got W0CBP