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

N1KOL

Active

Kolodziej, Marek K

Location: San Francisco, CA
Class: Amateur Extra
Granted: 2020-06-23
Expires: 2030-08-24
Previous call: KB1UPW
FRN: 0020067393

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Vanity availability

Held

Currently held

N1KOL 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

KB1UPWcancelled· G
Kolodziej, Marek KMAgranted 2010-08-03cancelled 2010-08-24

Prior holders later became

KD1IRexpired· A
FILLION, THOMAS BMAgranted 2012-03-10cancelled 2024-06-05

License history

0 events

No recorded events.

More vanity slots coming available

From California

All →

AC2TX 2026-09-10
K6DJM 2026-09-10
KC6JGS 2026-09-10
KC6KGL 2026-09-10
KC6VEU 2026-09-10

Starting with N1

All →

N1DWY CT · 2026-09-12
N1SSL FL · 2026-09-13
N1CKM NH · 2026-09-14
N1LTR VA · 2026-09-14
N1NMG MA · 2026-09-14

Full history → Vanity availability → Callsign genealogy →