| Callsign | K4GJK |
| Radio Service | HV - Vanity |
| License Status | A - Active |
| Grant Date | 2025-01-24 |
| Effective Date | 2025-01-24 |
| Expire Date | 2035-01-24 |
| Cancel Date | |
| Last Action Date | 2025-01-24 |
| End Date | 2035-01-24 |
| Available Date | 2037-01-25 |
| Applicant Type | I - Individual |
| Entity Name | KUPER, GREGORY J |
| Street Address / Locality | 1528 Long Hollow Pike Gallatin, TN 37066 |
| County | Sumner County |
| Zip Location | 36°23'55.5"N 86°27'19.9"W |
| Maidenhead | EM66sj |
| FRN | 0006031041 |
| Licensee ID/SGIN | L00442967 / 000 |
| Licensee Class | G - General |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 4 / 4 / TN |
| Prev Callsign / Prev Class | K7GJK P - Technician Plus |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | E - By List |
| ULS File Number | |
| Phonetic weight / Morse weight | 10 / 66 |