🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 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
📻
Also a GMRS licensee
Active until Jun 24, 2035 · same FCC Registration Number (FRN) · GMRS covers the licensee's immediate family
General class
licensed since 2025 (1 yr)
KC8CTO since 2025 · previously KC1YBJ
East Windsor Hill, CT
GMRS WSIU792
🔒 Not available — currently licensed, through Sep 3, 2035. If it isn't renewed, it opens for vanity requests Sep 4, 2037.
📬 QSL:
no LoTW uploads on record
· not eQSL AG
· QRZ · HamQTH
📝
KC8CTO has filed vanity applications before — latest filed Aug 14, 2025 ·
what was requested
Currently held by David H Prior Jr
· 2 holders on record
Current holder: David H Prior Jr
Held KC8CTO Sep 3, 2025 → present
· first licensed Jul 18, 2025 as KC1YBJ
· 2 licenses · FRN 0037176542
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Sep 25, 2025 → Oct 4, 2026 · 3 snapshots · as KC8CTO
David H Prior Jr
PO Box 2 East Windsor Hill, CT 06028
Seen Sep 25, 2025 → Oct 4, 2026 · 3 snapshots · as KC1YBJ
David H Prior Jr
501 Main St, South Windsor, CT 06074-3920
41.8381, -72.5778 (ZIP center) · Grid
FN31ru · CQ 5 · ITU 8 ·
map ↗
Previous holder: John M Guilkey
Held KC8CTO Jul 15, 2003 → Jul 18, 2006
· first licensed Jul 15, 2003 as KC8CTO
· 3 licenses · FRN 0009299215
K8EM
Active
Amateur Extra · vanity
Feb 20, 2008 → expires Feb 20, 2028
Licensee John M Guilkey
Address 638 ROBIN LANE NEWARK, OH 43055
40.0753, -82.4241 (street) · Grid
EN80sb · CQ 4 · ITU 8 ·
map ↗
FRN 0009299215
Previous call K8CTO (General)
Last granted Dec 6, 2017
Effective Dec 6, 2017
Last action Dec 6, 2017
FCC actions (3)
Dec 6, 2017 — License renewed LIREN Feb 20, 2008 — Vanity call sign granted VANGRT Feb 20, 2008 — License issued LIISS
K8CTO
Canceled
Amateur Extra · vanity
Jul 18, 2006 → Feb 20, 2008 (canceled)
Licensee John M Guilkey
Address 638 Robin Lane Newark, OH 43055
40.0753, -82.4241 (street) · Grid
EN80sb · CQ 4 · ITU 8 ·
map ↗
FRN 0009299215
Previous call KC8CTO (General)
Last granted Jul 18, 2006
Effective Feb 1, 2008
Last action Feb 20, 2008
FCC actions (4)
Feb 20, 2008 — License canceled LICAN Feb 1, 2008 — License modified LIMOD Jul 18, 2006 — Vanity call sign granted VANGRT Jul 18, 2006 — License issued LIISS
KC8CTO
Canceled
General
Jul 15, 2003 → Jul 18, 2006 (canceled)
Licensee JOHN M GUILKEY
Address 638 Robin Lane NEWARK, OH 43055
40.0753, -82.4241 (street) · Grid
EN80sb · CQ 4 · ITU 8 ·
map ↗
FRN 0009299215
Previous call KA0EFO
Last granted Jul 15, 2003
Effective Nov 19, 2005
Last action Jul 18, 2006
FCC actions (4)
Jul 18, 2006 — License canceled LICAN Nov 19, 2005 — Administrative update LIAUA Jul 15, 2003 — FCC action LITIN Jul 15, 2003 — License renewed LIREN
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 · 141 snapshots · as KC8CTO
JOHN M GUILKEY
638 Robin Lane, NEWARK, OH 43055
40.0753, -82.4241 (street) · Grid
EN80sb · CQ 4 · ITU 8 ·
map ↗
Seen Nov 7, 2004 · 1 snapshot · as KC8CTO
JOHN M GUILKEY
146 LINDEN, NEWARK, OH 43055
40.1105, -82.3787 (ZIP center) · Grid
EN80tc · CQ 4 · ITU 8 ·
map ↗
Vanity applications filed by KC8CTO
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 Aug 14, 2025
Granted Sep 3, 2025
0011691746
KC1YBJ · David H Prior Jr
· Technician
501 Main St, South Windsor, CT 06074-3920
41.8381, -72.5778 (ZIP center) · Grid
FN31ru · CQ 5 · ITU 8 ·
map ↗
Granted
Filed Jun 30, 2006
Award date was Jul 18, 2006
0002669646
KC8CTO · JOHN M GUILKEY
· General
638 Robin Lane, NEWARK, OH 43055
40.0753, -82.4241 (street) · Grid
EN80sb · CQ 4 · ITU 8 ·
map ↗
Granted
Others requesting KC8CTO
1 application listed KC8CTO as a choice, newest first.
Filed Award Applicant Choice # Status
Aug 14, 2025
Sep 1, 2025
KC1YBJ · David H Prior Jr · South Windsor, CT
1 Granted
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KC8CTO in the last 24 hours. They show up here within seconds of KC8CTO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.
Data: FCC Universal Licensing System (amateur & GMRS), NetLogger and more · site status
n9tpb.com · 73 de N9TPB