| Callsign | W1SJM |
|---|---|
| Radio Service | HV - Vanity |
| License Status | A - Active |
| Grant Date | 2025-09-11 |
| Effective Date | 2025-09-11 |
| Expire Date | 2035-09-11 |
| Cancel Date | |
| Last Action Date | 2025-09-11 |
| End Date | 2035-09-11 |
| Available Date | 2037-09-12 |
| Applicant Type | I - Individual |
| Entity Name | Mattern, Stephen J |
| Street Address / Locality | 15 Lincoln Street Plymouth, MA 02360 |
| County | Plymouth County |
| Zip Location | 41°52'55.4"N 70°37'52.6"W |
| Maidenhead | FN41qv |
| FRN | 0009888181 |
| Licensee ID/SGIN | L00782709 / 000 |
| Licensee Class | G - General |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 1 / 1 / MA |
| Prev Callsign / Prev Class | KB1KPQ T - Technician |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | E - By List |
| ULS File Number | |
| Phonetic weight / Morse weight | 10 / 66 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2014-02-11 | LIISS - License Issued |
| 2014-02-11 | VANGRT - Vanity Call Sign Assigned |
| 2025-09-11 | LIREN - License Renewed |