| Callsign | KK4YFL |
| Radio Service | HA - Amateur |
| License Status | E - Expired |
| Grant Date | 2014-02-13 |
| Effective Date | 2014-10-31 |
| Expire Date | 2024-03-05 |
| Cancel Date | 2026-03-06 |
| Last Action Date | 2026-03-06 |
| End Date | 2024-03-05 |
| Available Date | 2026-04-06 |
| Applicant Type | I - Individual |
| Entity Name | CARRENO HEREDIA, DOUGLAS E |
| Street Address / Locality | 1722 AMETHYST WAY LEXINGTON, KY 40509 |
| County | Fayette County |
| Zip Location | 37°59'50.5"N 84°22'40.3"W |
| Maidenhead | EM77tx |
| FRN | 0023355191 |
| Licensee ID/SGIN | L01842566 / 000 |
| Licensee Class | G - General |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 4 / 4 / KY |
| Prev Callsign / Prev Class | T - Technician |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0006527099 |
| Phonetic weight / Morse weight | 12 / 78 |