Confidence: Medium · Source: FCC ULS · As of 2026-09-10
KJ4ZGO
ActiveRIDDLE, ISAAC D
- Location
- Lancaster, CA
- Class
- General
- Granted
- 2026-05-29
- Expires
- 2036-06-29
- Previous call
- KC0YBN
- FRN
- 0015234388
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Vanity availability
HeldCurrently held
KJ4ZGO 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
- RIDDLE, ISAAC DVAgranted 2006-06-29cancelled 2010-11-18
License history
0 eventsNo recorded events.