| Callsign | KX4AOC |
| Radio Service | HV - Vanity |
| License Status | C - Canceled |
| Grant Date | 2018-11-14 |
| Effective Date | 2018-11-14 |
| Expire Date | 2028-11-14 |
| Cancel Date | 2019-02-22 |
| Last Action Date | 2019-02-22 |
| End Date | 2019-02-22 |
| Available Date | 2021-02-23 |
| Applicant Type | I - Individual |
| Entity Name | Emerson, Keith D |
| Street Address / Locality | 2025 carter rd St Augustine, FL 32084 |
| County | St. Johns County |
| Zip Location | 29°55'06.3"N 81°22'03.2"W |
| Maidenhead | EL99hw |
| FRN | 0023469687 |
| Licensee ID/SGIN | L01907092 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 4 / 4 / FL |
| Prev Callsign / Prev Class | KD9CPH |
| Next Callsign | KD9CPH KD9CPH KD9CPH KD9CPH |
| Trustee Callsign / Trustee Name | |
| Vanity Type | A - Former Holder |
| ULS File Number | |
| Phonetic weight / Morse weight | 12 / 76 |