| Callsign | KD3BYN |
|---|---|
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2025-09-24 |
| Effective Date | 2025-11-20 |
| Expire Date | 2035-09-24 |
| Cancel Date | |
| Last Action Date | 2025-11-20 |
| End Date | 2035-09-24 |
| Available Date | 2037-09-25 |
| Applicant Type | I - Individual |
| Entity Name | Helphenstine, Justin D |
| Street Address / Locality | 1106 Sweetbay Pl Silver Spring, MD 20906 |
| County | Montgomery County |
| Zip Location | 39°05'14.4"N 77°03'25.8"W |
| Maidenhead | FM19lc |
| FRN | 0026120139 |
| Licensee ID/SGIN | L02070748 / 000 |
| Licensee Class | G - General |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 3 / 3 / MD |
| Prev Callsign / Prev Class | T - Technician |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0011783762 |
| Phonetic weight / Morse weight | 12 / 74 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2025-09-24 | SYSGRT - New Systematic Call Sign Assigned |
| 2025-09-24 | LIISS - License Issued |
| 2025-11-20 | LIMOD - License Modified |