| Callsign | KZ4YU |
|---|---|
| Radio Service | HA - Amateur |
| License Status | C - Canceled |
| Grant Date | 2026-01-08 |
| Effective Date | 2026-01-08 |
| Expire Date | 2036-01-08 |
| Cancel Date | 2026-04-17 |
| Last Action Date | 2026-04-17 |
| End Date | 2026-04-17 |
| Available Date | 2028-04-18 |
| Applicant Type | I - Individual |
| Entity Name | Knisley, David J |
| Street Address / Locality | 521 Cypress Green Cir West Palm Beach, FL 33414 |
| County | Palm Beach County |
| Zip Location | 26°38'56.1"N 80°14'47.3"W |
| Maidenhead | EL96vp |
| FRN | 0014838213 |
| Licensee ID/SGIN | L01132536 / 000 |
| Licensee Class | E - Amateur Extra |
| Callsign Group | B - 2x2 |
| ULS/Geo Region | 4 / 4 / FL |
| Prev Callsign / Prev Class | |
| Next Callsign | K4FE |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | |
| Phonetic weight / Morse weight | 11 / 66 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2026-01-08 | SYSGRT - New Systematic Call Sign Assigned |
| 2026-01-08 | LIISS - License Issued |
| 2026-04-17 | LICAN - License Canceled |
FCC comments
| 2026-04-17 | Issued vanity call sign. |