Confidence: Medium · Source: FCC ULS · As of 2026-09-09
AC4KB
ExpiredSUMNER, DAVID P
- Location
- COLUMBIA, SC
- Class
- Amateur Extra
- Granted
- 1991-10-08
- Expires
- 2001-10-08
- Previous call
- KO4HM
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Vanity availability
UnknownStatus unknown
No vanity-slot record on file for AC4KB. Either it has never been issued, is currently held by an active license, or hasn't been re-computed since its last freeing event.
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
- BROWN, KENNETH JFLgranted 2009-09-14cancelled 2011-03-15
- KC4MXBno FCC ULS record on file
License history
0 eventsNo recorded events.