| Callsign | WB4MDC |
|---|---|
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2026-01-13 |
| Effective Date | 2026-01-13 |
| Expire Date | 2036-01-19 |
| Cancel Date | |
| Last Action Date | 2026-01-13 |
| End Date | 2036-01-19 |
| Available Date | 2038-01-20 |
| Applicant Type | I - Individual |
| Entity Name | WARREN, WILLIAM J |
| Street Address / Locality | 4 TOMAHAWK DR MERRIMACK, NH 030542335 |
| County | Hillsborough County |
| Zip Location | 42°51'07.3"N 71°31'11.6"W |
| Maidenhead | FN42fu |
| FRN | 0014357073 |
| Licensee ID/SGIN | L01091574 / 000 |
| Licensee Class | E - Amateur Extra |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 4 / 1 / NH |
| Prev Callsign / Prev Class | A - Advanced |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 9903088883 |
| Phonetic weight / Morse weight | 11 / 72 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2005-12-06 | ESCFRN |
| 2005-12-07 | LIREN - License Renewed |
| 2015-11-19 | LIREN - License Renewed |
| 2021-01-09 | LIAUA - Administrative Update Applied |
| 2021-01-09 | LIAUA - Administrative Update Applied |
| 2026-01-13 | LIREN - License Renewed |