| Callsign | WA1UMU |
|---|---|
| Radio Service | HV - Vanity |
| License Status | A - Active |
| Grant Date | 2018-02-27 |
| Effective Date | 2026-07-27 |
| Expire Date | 2028-02-27 |
| Cancel Date | |
| Last Action Date | 2026-07-27 |
| End Date | 2028-02-27 |
| Available Date | 2030-02-28 |
| Applicant Type | I - Individual |
| Entity Name | Jaczko, Rob |
| Street Address / Locality | 115 Mayapple Rd. N. Stamford, CT 06903 |
| County | Fairfield County |
| Zip Location | 41°08'09.7"N 73°34'16.1"W |
| Maidenhead | FN31fd |
| FRN | 0027162353 |
| Licensee ID/SGIN | L02156759 / 000 |
| Licensee Class | G - General |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 1 / 1 / CT |
| Prev Callsign / Prev Class | KC1IWJ T - Technician |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | E - By List |
| ULS File Number | 0008681427 |
| Phonetic weight / Morse weight | 12 / 70 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2018-02-27 | LIISS - License Issued |
| 2018-02-27 | VANGRT - Vanity Call Sign Assigned |
| 2019-06-06 | LIMOD - License Modified |
| 2025-09-09 | LIAUA - Administrative Update Applied |
| 2025-09-12 | LIAUA - Administrative Update Applied |
| 2026-07-27 | LIAUA - Administrative Update Applied |