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
KD8DEF
Not currently held
· 1 holder on record
· available since Feb 17, 2026
Previous holder: Timothy R Alkema
Held KD8DEF Mar 22, 2006 → Feb 16, 2024
· first licensed Mar 22, 2006 as KD8DEF
· 2 licenses · FRN 0014829857
K8LK
Active
Amateur Extra · vanity
Feb 16, 2024 → expires Feb 16, 2034
Licensee Timothy R Alkema
Address 1450 Taylor St Jenison, MI 49428
42.9288, -85.8184 (street) · Grid
EN72cw · CQ 4 · ITU 8 ·
map ↗
FRN 0014829857
Previous call KD8DEF (General)
Last granted Feb 16, 2024
Effective Feb 16, 2024
Last action Feb 16, 2024
FCC actions (2)
Feb 16, 2024 — Vanity call sign granted VANGRT Feb 16, 2024 — License issued LIISS
KD8DEF
Canceled
Amateur Extra
Mar 22, 2006 → Feb 16, 2024 (canceled)
Licensee Timothy R Alkema
Address 1450 Taylor St Jenison, MI 49428
42.9288, -85.8184 (street) · Grid
EN72cw · CQ 4 · ITU 8 ·
map ↗
FRN 0014829857
Last granted May 25, 2016
Effective Nov 15, 2021
Last action Feb 16, 2024
FCC actions (6)
Feb 16, 2024 — License canceled LICAN Nov 15, 2021 — License modified LIMOD May 25, 2016 — License renewed LIREN Jul 14, 2009 — License modified LIMOD Mar 22, 2006 — License issued LIISS Mar 22, 2006 — 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 Jun 30, 2016 → Sep 27, 2026 · 36 snapshots · as KD8DEF
Timothy R Alkema
1450 Taylor St, Jenison, MI 49428
42.9288, -85.8184 (street) · Grid
EN72cw · CQ 4 · ITU 8 ·
map ↗
Seen May 27, 2010 → Mar 16, 2016 · 21 snapshots · as KD8DEF
Timothy R Alkema
1050 Patton Way, Grand Rapids, MI 49504
42.9816, -85.7107 (ZIP center) · Grid
EN72dx · CQ 4 · ITU 8 ·
map ↗
Data: FCC Universal Licensing System, amateur service · refreshed nightly
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