Confidence: Medium · Source: FCC ULS · As of 2026-09-10

W1NDI

Active

KALKOFEN, JAMES G

Location: CHESTERFIELD, MO
Class: Amateur Extra
Granted: 2025-06-14
Expires: 2035-07-24
Previous call: KF4CML
FRN: 0013841747

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Vanity availability

Held

Currently held

W1NDI is held by an active license; it isn't a vanity slot right now.

Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).

Callsign genealogy

Full chain →

Previously held by current licensee

KF4CMLcancelled· T
KALKOFEN, JAMES GMOgranted 2005-08-03cancelled 2015-07-24

License history

0 events

No recorded events.

More vanity slots coming available

From Missouri

All →

KD0TBI 2026-09-11
KD0TBJ 2026-09-11
KD0TBK 2026-09-11
KD0TBL 2026-09-11
KD0TBM 2026-09-11

Starting with W1

All →

W1RLJ MA · 2026-09-10
W1BEK CT · 2026-09-13
W1GOU NH · 2026-09-21
W1PVC MA · 2026-10-04
W1CEF RI · 2026-10-12

Full history → Vanity availability → Callsign genealogy →