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
N6GSO
Not currently held
· 2 holders on record
Previous holder: Gregory S Oberfield
Held N6GSO Aug 23, 2025 → Dec 9, 2025
· first licensed Mar 17, 2014 as KD9ARR
· 3 licenses · FRN 0023453426
N4TI
Active
Amateur Extra · vanity
Dec 9, 2025 → expires Dec 9, 2035
Licensee Gregory S Oberfield
Address 8 N Chestnut Ct Hawthorn Woods, IL 60047
42.2083, -88.0616 (street) · Grid
EN52xf · CQ 4 · ITU 8 ·
map ↗
FRN 0023453426
Previous call N6GSO (General)
Last granted Dec 9, 2025
Effective Dec 11, 2025
Last action Dec 11, 2025
FCC actions (3)
Dec 11, 2025 — FCC action LIAUA Dec 9, 2025 — Vanity call sign granted VANGRT Dec 9, 2025 — License issued LIISS
N6GSO
Canceled
Amateur Extra · vanity
Aug 23, 2025 → Dec 9, 2025 (canceled)
Licensee Gregory S Oberfield
Address Attn: Greg Oberfield 8 N Chestnut Ct Hawthorn Woods, IL 60047
42.2083, -88.0616 (street) · Grid
EN52xf · CQ 4 · ITU 8 ·
map ↗
FRN 0023453426
Previous call KD9ARR (General)
Last granted Aug 23, 2025
Effective Aug 23, 2025
Last action Dec 9, 2025
FCC actions (3)
Dec 9, 2025 — License canceled LICAN Aug 23, 2025 — Vanity call sign granted VANGRT Aug 23, 2025 — License issued LIISS
KD9ARR
Canceled
Amateur Extra
Mar 17, 2014 → Aug 23, 2025 (canceled)
Licensee Gregory S Oberfield
Address 8 N Chestnut Ct Hawthorn Woods, IL 60047
42.2083, -88.0616 (street) · Grid
EN52xf · CQ 4 · ITU 8 ·
map ↗
FRN 0023453426
Last granted Jan 3, 2024
Effective Jul 15, 2025
Last action Aug 23, 2025
FCC actions (7)
Aug 23, 2025 — License canceled LICAN Jul 15, 2025 — License modified LIMOD Jan 3, 2024 — License renewed LIREN Oct 21, 2016 — License modified LIMOD Oct 19, 2016 — FCC action LIAUA Mar 17, 2014 — License issued LIISS Mar 17, 2014 — 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 Nov 4, 2016 → Sep 27, 2026 · 27 snapshots · as KD9ARR
Gregory S Oberfield
8 N Chestnut Ct, Hawthorn Woods, IL 60047
42.2083, -88.0616 (street) · Grid
EN52xf · CQ 4 · ITU 8 ·
map ↗
Seen Mar 28, 2014 → Jun 30, 2016 · 13 snapshots · as KD9ARR
Gregory S Oberfield
8 N Chestnut Ct, Lake Zurich, IL 60047
42.2016, -88.0463 (ZIP center) · Grid
EN52xe · CQ 4 · ITU 8 ·
map ↗
Previous holder: Russell T Enloe
Held N6GSO May 30, 2001 → May 30, 2011
· first licensed Mar 22, 2001 as KG6FSW
· 2 licenses · FRN 0004593489
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen May 27, 2010 → Sep 27, 2026 · 46 snapshots · as N6GSO
Russell T Enloe
31422 CHIHUAHUA VALLEY RD, WARNER SPRINGS, CA 92086
33.3140, -116.6295 (ZIP center) · Grid
DM13qh · CQ 3 · ITU 6 ·
map ↗
Seen Nov 7, 2004 → Sep 27, 2026 · 48 snapshots · as KG6FSW
Russell T Enloe
7417 E Grovewood Ln, Orange, CA 92869
33.7955, -117.7649 (ZIP center) · Grid
DM13ct · CQ 3 · ITU 6 ·
map ↗
Vanity requests for N6GSO
2 applications listed N6GSO as a choice, newest first.
Data: FCC Universal Licensing System, amateur service · refreshed nightly
n9tpb.com · 73 de N9TPB