| Callsign | W4MRK |
|---|---|
| Radio Service | HV - Vanity |
| License Status | A - Active |
| Grant Date | 2023-06-06 |
| Effective Date | 2025-05-03 |
| Expire Date | 2033-06-06 |
| Cancel Date | |
| Last Action Date | 2025-05-03 |
| End Date | 2033-06-06 |
| Available Date | 2035-06-07 |
| Applicant Type | I - Individual |
| Entity Name | Helms, Mark R |
| Street Address / Locality | 3513 Country Hill Dr Fairfax, VA 22030 |
| County | Fairfax County |
| Zip Location | 38°50'13.9"N 77°20'25.7"W |
| Maidenhead | FM18hu |
| FRN | 0033703265 |
| Licensee ID/SGIN | L02667862 / 000 |
| Licensee Class | E - Amateur Extra |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 4 / 4 / VA |
| Prev Callsign / Prev Class | KY4XT |
| 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 |
|---|---|
| 2023-06-06 | LIISS - License Issued |
| 2023-06-06 | VANGRT - Vanity Call Sign Assigned |
| 2025-05-03 | LIAUA - Administrative Update Applied |