| Callsign | KR4NLZ |
|---|---|
| Radio Service | HA - Amateur |
| License Status | C - Canceled |
| Grant Date | 2026-07-01 |
| Effective Date | 2026-07-01 |
| Expire Date | 2036-07-01 |
| Cancel Date | 2026-07-24 |
| Last Action Date | 2026-07-24 |
| End Date | 2026-07-24 |
| Available Date | 2028-07-25 |
| Applicant Type | I - Individual |
| Entity Name | Mattheis, Sean |
| Street Address / Locality | 5600 Spalding Drive # 920692 Peachtree Corners, GA 30010 |
| County | Gwinnett |
| Zip Location | 33°57'37.4"N 84°02'16.4"W |
| Maidenhead | EM73xx |
| FRN | 0037897519 |
| Licensee ID/SGIN | L03002173 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 4 / 4 / GA |
| Prev Callsign / Prev Class | |
| Next Callsign | KS4RAM |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | |
| Phonetic weight / Morse weight | 14 / 70 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2026-07-01 | SYSGRT - New Systematic Call Sign Assigned |
| 2026-07-01 | LIISS - License Issued |
| 2026-07-24 | LICAN - License Canceled |
FCC comments
| 2026-07-24 | Issued vanity call sign. |