| Callsign | KO4K |
|---|---|
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2026-03-12 |
| Effective Date | 2026-03-12 |
| Expire Date | 2036-05-16 |
| Cancel Date | |
| Last Action Date | 2026-03-12 |
| End Date | 2036-05-16 |
| Available Date | 2038-05-17 |
| Applicant Type | I - Individual |
| Entity Name | NEFF, ROBERT H |
| Street Address / Locality | 1905 KIRBY RD MCLEAN, VA 221015302 |
| County | Fairfax County |
| Zip Location | 38°56'24.7"N 77°09'53.6"W |
| Maidenhead | FM18kw |
| FRN | 0015053796 |
| Licensee ID/SGIN | L01151855 / 000 |
| Licensee Class | E - Amateur Extra |
| Callsign Group | A - 2x1 |
| ULS/Geo Region | 4 / 4 / VA |
| Prev Callsign / Prev Class | |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 9400244333 |
| Phonetic weight / Morse weight | 8 / 52 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2006-05-16 | LIREN - License Renewed |
| 2006-05-16 | ESUFRN |
| 2016-03-01 | LIREN - License Renewed |
| 2026-03-12 | LIREN - License Renewed |