Confidence: Medium · Source: FCC ULS · As of 2026-09-09
AD0IU
ActiveSteenburgh, Robert A
- Location
- Longmont, CO
- Class
- Amateur Extra
- Granted
- 2024-04-16
- Expires
- 2034-07-13
- Previous call
- KA8JBY
- FRN
- 0006197545
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Vanity availability
HeldCurrently held
AD0IU 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
- Steenburgh, Robert ACOgranted 2004-07-03cancelled 2014-05-21
License history
0 eventsNo recorded events.