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

KN4TOP

Active

THOMPSON, MATTHEW K

Location
WINSTON SALEM, NC
Class
Technician
Granted
2017-09-30
Expires
2027-09-30
Previous call
KN4FUA
FRN
0026821397
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Vanity availability

Held

Currently held

KN4TOP 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

  1. KN4FUAcancelled· T
    THOMPSON, MATTHEW KNCgranted 2017-09-12cancelled 2017-09-30

License history

0 events

No recorded events.

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