| Callsign | K6DUF |
|---|---|
| Radio Service | HV - Vanity |
| License Status | E - Expired |
| Grant Date | 2013-06-25 |
| Effective Date | 2021-09-08 |
| Expire Date | 2023-06-25 |
| Cancel Date | 2025-06-26 |
| Last Action Date | 2025-06-26 |
| End Date | 2023-06-25 |
| Available Date | 2025-07-27 |
| Applicant Type | I - Individual |
| Entity Name | Siess, Matthew A |
| Street Address / Locality | PO Box 362 Coopersburg, PA 18036 |
| County | Lehigh County |
| Zip Location | 40°30'32.0"N 75°23'09.6"W |
| Maidenhead | FN20hm |
| FRN | 0022360317 |
| Licensee ID/SGIN | L01783314 / 000 |
| Licensee Class | G - General |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 6 / 3 / PA |
| Prev Callsign / Prev Class | KK6DUF T - Technician |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | E - By List |
| ULS File Number | |
| Phonetic weight / Morse weight | 10 / 58 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2013-06-25 | LIISS - License Issued |
| 2013-06-25 | VANGRT - Vanity Call Sign Assigned |
| 2013-07-02 | LIAUA - Administrative Update Applied |
| 2015-02-12 | LIAUA - Administrative Update Applied |
| 2021-09-08 | LIAUA - Administrative Update Applied |
| 2025-06-26 | LIEXP - License Expired |