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Confidence: Medium · Source: FCC ULS · As of 2026-10-26

K4LOS

Expired

MADRID, CARLOS J

Location
Klamath Falls, OR
Class
Technician
Granted
2014-10-15
Expires
2024-10-15
Previous call
KK6PCE
FRN
0023930571
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Vanity availability

1451d

Available on 2030-10-16

K4LOS expired on 2026-10-17. Hold ends in 1451 days.

Last held by MADRID, CARLOS J (OR).

Confidence: High

Expired licenses get a 2-year FCC renewal grace period followed by the 2-year hold. The date shown accounts for both, so it's the firm release date per §97.19.

Callsign genealogy

Full chain →

Previously held by current licensee

  1. KK6PCEcancelled· T
    MADRID, CARLOS JCAgranted 2014-09-25cancelled 2014-10-15

License history

5 events
  1. Expired
    LIEXP
    [LIEXP]
  2. Address update
    LIAUA
    [LIAUA]
  3. Address update
    LIAUA
    [LIAUA]
  4. License granted
    LIISS
    [LIISS]
  5. Vanity callsign change
    VANGRT
    [VANGRT]

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