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

KI0SI

Active

Johnson, Homer K

Location: Greeley, CO
Class: Advanced
Granted: 2016-06-07
Expires: 2026-08-01
Previous call: W6RSW
FRN: 0007337942

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Vanity availability

Held

Currently held

KI0SI 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

W6RSWactive· E
STOWE, ROBERT WCAgranted 2014-09-05
WA6SIScancelled· E
STOWE, ROBERT WCAgranted 2012-03-06cancelled 2014-09-05
KJ6TWUcancelled· T
STOWE, ROBERT WCAgranted 2012-02-03cancelled 2012-03-06

License history

0 events

No recorded events.

More vanity slots coming available

From Colorado

All →

K0RTS 2026-09-09
K7UGT 2026-09-09
W0RMH 2026-09-09
KB7PWB 2026-09-10
KF0RME 2026-09-10

Starting with KI0

All →

KI0BI AZ · 2026-11-02
KI0DT MO · 2026-12-21
KI0NH OH · 2026-12-21
KI0NX MO · 2027-01-11
KI0IK KS · 2027-01-17

Full history → Vanity availability → Callsign genealogy →