| Callsign | KD1AEN |
|---|---|
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2026-09-24 |
| Effective Date | 2026-09-24 |
| Expire Date | 2036-09-24 |
| Cancel Date | |
| Last Action Date | 2026-09-24 |
| End Date | 2036-09-24 |
| Available Date | 2038-09-25 |
| Applicant Type | I - Individual |
| Entity Name | Roos, William A |
| Street Address / Locality | 17 A Grant St Waltham, MA 02453 |
| County | Middlesex County |
| Zip Location | 42°22'10.4"N 71°14'25.8"W |
| Maidenhead | FN42ji |
| FRN | 0038881595 |
| Licensee ID/SGIN | L03082244 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 1 / 1 / MA |
| Prev Callsign / Prev Class | |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | |
| Phonetic weight / Morse weight | 12 / 62 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2026-09-24 | SYSGRT - New Systematic Call Sign Assigned |
| 2026-09-24 | LIISS - License Issued |