N9TPB FCC License Search
🕒 FCC license data updated today 7:16 am CDT (FCC files through Oct 7, 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)

AB4YZ HAM

Amateur Extra class licensed since 2003 (23 yrs) AB4YZ since 2024 · previously K4ISP, KG4ZVT Bixby, OK Grid EM25bx 79 repeaters within 50 mi
🔒 Not available — currently licensed, through Mar 19, 2034. If it isn't renewed, it opens for vanity requests Mar 20, 2036.

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

📝 AB4YZ has filed vanity applications before — latest filed Mar 1, 2024 · what was requested

Currently held by JONATHAN L KERFOOT · 2 holders on record

Current holder: JONATHAN L KERFOOT

Held AB4YZ Mar 19, 2024 → present · first licensed Apr 23, 2003 as KG4ZVT · 3 licenses · FRN 0008841421

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

Previous holder: RAYMOND W CRAMPTON

Held AB4YZ Sep 18, 1990 → Sep 18, 2020 · first licensed Sep 18, 1990 as AB4YZ · 1 license · FRN 0003025640

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.
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
AB4YZ 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.

Vanity Applications Filed by AB4YZ

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 · AwardApplicantRequested (in order)Status
Filed Mar 1, 2024
Granted Mar 19, 2024
0010949725
 K4ISP · JONATHAN L KERFOOT · Amateur Extra
13011 S 78th East Ave, BIXBY, OK 74008
35.9748, -95.8895 (street) · Grid EM25bx · CQ 4 · ITU 7 · map ↗
1.AB4YZ ✓ Granted
2.KB4XI Available
3.WW4QI Available
4.AB4XI Available
5.KK4ZY Available
6.AC4QI Available
7.AE4QI Available
8.KK4XI Available
9.KD4QI Available
10.KK4QI Available
11.KM4XI Available
12.KV4XI Available
 Granted
got AB4YZ
Filed Apr 23, 2007
Granted Apr 19, 2017
0003001951
 KG4ZVT · JONATHAN L KERFOOT · Amateur Extra
1121 E OMAHA ST APT A4, BROKEN ARROW, OK 74012
36.0514, -95.8057 (ZIP center) · Grid EM26cb · CQ 4 · ITU 7 · map ↗
1.K4ISP ✓ Granted
2.N4ISP Held by Dayton T Clark until May 31, 2033
3.W4ISP Held by Robert R Samson until Jun 22, 2032
4.K0ISP Held by MICHAEL D VITITOE until Oct 8, 2026
5.K1ISP Never issued
6.K2ISP Held by DALE W BRAMER until Mar 29, 2034
7.K3ISP Held by Matthew S Hoppes until Dec 23, 2026
8.K5ISP Never issued
9.K6ISP Held by Rick Kunze until May 6, 2031
10.K7ISP Never issued
11.K8ISP Never issued
12.K9ISP Held by JEFFREY R LIGHT until Nov 26, 2035
 Granted
got K4ISP

Others Requesting AB4YZ

1 application listed AB4YZ as a choice, newest first.

FiledAwardApplicantChoice #AB4YZResult
Mar 1, 2024 Mar 19, 2024 K4ISP · JONATHAN L KERFOOT · BIXBY, OK 1Granted Granted this call

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for AB4YZ in the last 24 hours. They show up here within seconds of AB4YZ beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 Miles

79 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)
MilesCallNameOutputOffsetToneModeNetworksActivityLocation
27.7 WX5RC Claremore RSU
WX5RC AllStar
 147.0900 +0.6 TSQL 88.5 FM (analog) (FM,C4FM) AllStar 49562 AllStar 515420 🗓 2 nets 2 nets · 1,277 check-ins · 242 stations Claremore, OK
27.9 WX5RC Claremore RSU
WX5RC AllStar
 444.3500 +5 TSQL 88.5 FM (analog) (FM,DV,DMR,C4FM,P25) AllStar 49562 EchoLink 657006 WIRES-X 28292 🗓 2 nets 2 nets · 1,277 check-ins · 242 stations Claremore, OK
18.2 KD5FMU Preston
KD5FMU AllStar
 444.1750 +5 TSQL 88.5 FM (analog) (C4FM,FM) AllStar 577880 EchoLink 982594 AllStar 57788 🗓 1 net 1 net · 57 check-ins · 31 stations Preston, OK
27.5 KD5FMU Henryetta
KD5FMU AllStar
 444.8250 +5 TONE 100.0 FM (analog) AllStar 577885 🗓 1 net 1 net · 57 check-ins · 31 stations Henryetta, OK
37.2 KD5FMU Henryetta
KD5FMU AllStar
 147.2000 +0.6 TONE 88.5 FM (analog) AllStar 577889 🗓 1 net 1 net · 57 check-ins · 31 stations Henryetta, OK
2.4 KI5UNR Bixby Evergreen
KI5UNR AllStar
 145.2500 -0.6 TSQL 141.3 FM (analog) AllStar 584801 🗓 2 nets 2 nets · 49 check-ins · 24 stations Bixby, OK
14.3 K5JME Tulsa
K5JME
 147.0000 +0.6 TSQL 100.0 FM (analog) 🗓 1 net 1 net · 45 check-ins · 11 stations Tulsa, OK
40.3 KB5QAI Checotah
KB5QAI AllStar
 443.9750 +5 TSQL 100.0 FM (analog) (C4FM,FM) AllStar 579291 EchoLink 152319 🗓 1 net 1 net · 33 check-ins · 14 stations Checotah, OK
18.2 WX5OKM Preston
WX5OKM AllStar
 147.2250 +0.6 TSQL 88.5 FM (analog) AllStar 576337 🗓 1 net 1 net · 7 check-ins · 7 stations Preston, OK
6.1 W5IAS Leonard
W5IAS BM
 443.6500 +5 CC1 DMR BrandMeister 314021 🗓 1 net 1 net Leonard, OK
9.2 W5IAS Tulsa 41st
W5IAS AllStar
 224.3800 -1.6 TSQL 88.5 FM (analog) AllStar 🗓 1 net 1 net Tulsa, OK
9.2 W5IAS Tulsa 41st
W5IAS
 53.1500 in 51.4500 TSQL 88.5 FM (analog) 🗓 1 net 1 net Tulsa, OK
10.8 W5IAS Tulsa 41st Lynn
W5IAS
 443.8500 +5 TSQL 88.5 FM (analog) 🗓 1 net 1 net Tulsa, OK
10.8 W5IAS Tulsa 41st Lynn
W5IAS
 145.1700 -0.6 TSQL 88.5 FM (analog) (FM,C4FM) 🗓 1 net 1 net Tulsa, OK
12.4 W5IAS Offline Bartlesville
W5IAS
 442.4750 +5 CC? DMR 🗓 1 net 1 net Bartlesville, OK
12.4 W5IAS Tulsa Lookout
W5IAS
 145.1100 -0.6 TSQL 88.5 FM (analog) (FM,C4FM) 🗓 1 net 1 net Tulsa, OK
13.6 W5IAS Tulsa Lookout
W5IAS WIRES-X
 443.0000 +5 Fusion (C4FM) WIRES-X 33565 🗓 1 net 1 net Tulsa, OK
13.7 W5IAS Tulsa Lookout
W5IAS
 443.7500 +5 TSQL 88.5 FM (analog) (FM,C4FM) 🗓 1 net 1 net Tulsa, OK
15.9 W5IAS Offline Bartlesville
W5IAS
 444.8500 +5 CC? DMR 🗓 1 net 1 net Bartlesville, OK
16.4 W5IAS Mounds
W5IAS
 444.6000 +5 TONE 88.5 FM (analog) 🗓 1 net 1 net Mounds, OK
28.2 W5IAS Mannford
W5IAS
 147.0450 +0.6 TONE 88.5 FM (analog) (FM,C4FM) 🗓 1 net 1 net Mannford, OK
28.2 W5IAS Mannford
W5IAS
 442.8000 +5 TSQL 88.5 FM (analog) 🗓 1 net 1 net Mannford, OK
28.2 W5IAS Mannford
W5IAS
 444.4500 +5 CC1 DMR 🗓 1 net 1 net Mannford, OK
33.1 W5IAS Muskogee
W5IAS
 443.1000 +5 TSQL 88.5 FM (analog) 🗓 1 net 1 net Muskogee, OK
2.3 W5RAB Bixby Leonard
W5RAB AllStar
 224.1800 -1.6 TONE 88.5 FM (analog) AllStar 41270 — Bixby, OK
2.3 KC0MNX Bixby
KC0MNX BM
 439.5500 in 433.5500 CC1 DMR BrandMeister 322293701 — Bixby, OK
2.9 AF5LW Tulsa
AF5LW AllStar
 445.4125 simplex TONE 88.5 FM (analog) AllStar 530122 — Tulsa, OK
2.9 AF5LW Tulsa
AF5LW BM
 446.8125 in 433.0125 CC5 DMR BrandMeister 314008605 — Tulsa, OK
3.2 KF5TVG Broken Arrow
KF5TVG AllStar
 220.0000 simplex TONE 88.5 FM (analog) AllStar 47991 — Broken Arrow, OK
3.3 KF5TVG Broken Arrow
KF5TVG AllStar
 442.6500 +5 TONE 88.5 FM (analog) AllStar 45816 — Broken Arrow, OK
5.7 WD5ETD Offline Tulsa
WD5ETD BM
 441.9750 +5 CC1 DMR BrandMeister 311783 BrandMeister 314022 — Tulsa, OK
5.9 WA5LVT Tulsa CityPlex
WA5LVT
 146.8800 -0.6 TSQL 88.5 FM (analog) — Tulsa, OK
5.9 WD5ETD Tulsa CityPlex
WD5ETD
 927.7000 -25 DCS 074 FM (analog) — Tulsa, OK
6.4 W5RAB Bixby Leonard
W5RAB
 443.6500 +5 CC1 DMR — Bixby, OK
7.4 WX5OU Broken Arrow
WX5OU BM
 443.5000 +5 CC1 DMR BrandMeister 314030 — Broken Arrow, OK
8.4 W5DRZ Broken Arrow Tig
W5DRZ
 146.9100 -0.6 TSQL 88.5 FM (analog) — Broken Arrow, OK
8.7 W5DRZ Tulsa HGIB Arrow
W5DRZ WIRES-X
 443.6000 +5 Fusion (C4FM) WIRES-X 30507 — Tulsa, OK
9.2 WA5LVT Tulsa 41st
WA5LVT
 444.1000 +5 TSQL 88.5 FM (analog) — Tulsa, OK
9.2 KI5VAG Tulsa
KI5VAG BM
 433.6000 +5 CC1 DMR BrandMeister 319251701 — Tulsa, OK
10.3 NM0D Leonard Conchart
NM0D AllStar
 443.3250 +5 TSQL 88.5 FM (analog) AllStar 56860 — Leonard, OK
10.6 N5XP Tulsa
N5XP
 443.0250 +5 none D-STAR — Tulsa, OK
10.7 AE5RH Tulsa
AE5RH AllStar
 224.8600 in 222.8600 TSQL 88.5 FM (analog) AllStar 40086 — Tulsa, OK
11.9 W5RAB Mounds
W5RAB
 444.8500 +5 CC1 DMR — Mounds, OK
12.4 W5GGW Tulsa
W5GGW WIRES-X
 448.0000 -5 DG-ID 00-00 Fusion (C4FM) WIRES-X 33565 — Tulsa, OK
12.8 N5DRW Mounds
N5DRW
 444.0750 +5 TSQL 88.5 FM (analog) (FM,C4FM) — Mounds, OK
13.1 WA5LVT Tulsa Sun
WA5LVT
 146.9400 -0.6 TSQL 88.5 FM (analog) — Tulsa, OK
13.7 KH2MI Tulsa
KH2MI AllStar
 446.2000 simplex TONE 88.5 FM (analog) AllStar 593673 AllStar 593671 AllStar 527135 — Tulsa, OK
13.7 WA5LVT Tulsa Lookout
WA5LVT
 442.4750 +5 CC2 DMR — Tulsa, OK
13.7 KN5V Offline Tulsa AUM Church
KN5V
 442.6000 +5 none D-STAR — Tulsa, OK
14.7 KC1KCE Sapulpa
KC1KCE BM
 449.0000 in 438.5000 CC1 DMR BrandMeister 3158993 — Sapulpa, OK
15.6 N5DRW Sapulpa Wtr
N5DRW
 145.4300 -0.6 TSQL 88.5 FM (analog) (FM,C4FM) — Sapulpa, OK
15.9 WB5NJU Kenton
WB5NJU
 147.3900 +0.6 TONE 88.5 FM (analog) — Kenton, NM
15.9 N5DRW Mounds
N5DRW AllStar
 147.1200 +0.6 TSQL 88.5 FM (analog) AllStar 850433 EchoLink 850433 — Mounds, OK
16.0 WT5EOC Tulsa Reservoir
WT5EOC
 146.8350 -0.6 TSQL 103.5 FM (analog) (FM,C4FM) — Tulsa, OK
16.5 KI5EGH Offline Sapulpa
KI5EGH
 442.5500 +5 TSQL 88.5 FM (analog) (FM,C4FM) — Sapulpa, OK
20.5 KD5WUB Owasso
KD5WUB BM
 434.0000 in 427.0000 CC1 DMR BrandMeister 322568201 — Owasso, OK
25.9 WD5ETD Claremore Keeton
WD5ETD AllStar
 224.4800 -1.6 TONE 88.5 FM (analog) AllStar 28737 — Claremore, OK
27.9 WX5MC Claremore Keeton
WX5MC
 442.0750 +5 TSQL 88.5 FM (analog) — Claremore, OK
27.9 W5RAB Claremore Keeton
W5RAB
 442.3500 +5 CC1 DMR — Claremore, OK
31.7 W5RAB Skiatook
W5RAB AllStar
 224.6200 -1.6 TSQL 88.5 FM (analog) AllStar 40043 — Skiatook, OK
33.1 N5QP Muskogee
N5QP AllStar
 224.3400 -1.6 TSQL 88.5 FM (analog) AllStar 46525 AllStar 45355 — Muskogee, OK
33.1 KK5I Muskogee
KK5I AllStar
 146.7450 -0.6 TSQL 88.5 FM (analog) (FM,P25) AllStar 453513 — Muskogee, OK
33.1 N5QP Ft Gibson
N5QP
 147.3300 +0.6 TSQL 88.5 FM (analog) (FM,P25) — Ft Gibson, OK
33.4 KK5I Ft Gibson
KK5I AllStar
 146.8500 -0.6 TSQL 88.5 FM (analog) (FM,P25) AllStar — Ft Gibson, OK
34.6 WA5LVT Skiatook
WA5LVT
 444.7250 +5 TONE 88.5 FM (analog) — Skiatook, OK
36.5 W5RAB Offline Depew
W5RAB
 444.3750 +5 CC1 DMR — Depew, OK
37.8 N5QP Ft Gibson
N5QP
 444.8000 +5 none P25 — Ft Gibson, OK
37.8 N5QP Fort Gibson
N5QP AllStar
 927.0125 -25 DCS 074 FM (analog) (FM,P25) AllStar 45191 — Fort Gibson, OK
37.8 N5XQK Foyil
N5XQK
 146.7000 -0.6 TSQL 100.0 FM (analog) (FM,C4FM) — Foyil, OK
39.4 WX5MC Pryor
WX5MC
 147.0600 +0.6 TSQL 88.5 FM (analog) — Pryor, OK
39.4 WX5MC Pryor
WX5MC
 444.6750 +5 TSQL 88.5 FM (analog) — Pryor, OK
39.9 WD5ETD Offline Bartlesville
WD5ETD BM
 444.3750 +5 CC1 DMR BrandMeister 314015 — Bartlesville, OK
40.9 WA5VMS Fort Gibson
WA5VMS
 442.1250 +5 CC? DMR — Fort Gibson, OK
40.9 N5QP
Listed as N5QP-OK-MKO
 Fort Gibson
N5QP BM
 442.1250 +5 CC1 DMR BrandMeister 314004 — Fort Gibson, OK
40.9 N5QP Ft Gibson
N5QP WIRES-X
 443.5750 +5 Fusion (C4FM) WIRES-X 33638 — Ft Gibson, OK
43.1 AE5RH Depew MT Plaza
AE5RH AllStar
 224.4200 -1.6 TSQL 88.5 FM (analog) AllStar 41037 — Depew, OK
48.2 W5RAB Bartlesville
W5RAB
 927.6500 -25 DCS 074 FM (analog) — Bartlesville, OK
48.2 KD5IMA Bartlesville
KD5IMA IRLP
 145.1500 -0.6 TSQL 88.5 FM (analog) IRLP 8310 — Bartlesville, OK
49.3 WA5VXI Tahlequah
WA5VXI
 442.7000 +5 Fusion (C4FM) — Tahlequah, OK