| Callsign | W4DTB |
|---|---|
| Radio Service | HV - Vanity |
| License Status | A - Active |
| Grant Date | 2021-01-28 |
| Effective Date | 2025-06-17 |
| Expire Date | 2031-04-26 |
| Cancel Date | |
| Last Action Date | 2025-06-17 |
| End Date | 2031-04-26 |
| Available Date | 2033-04-27 |
| Applicant Type | I - Individual |
| Entity Name | Brown, Derek T |
| Street Address / Locality | 402 Prospect St Seattle, WA 98109 |
| County | King County |
| Zip Location | 47°37'54.7"N 122°20'39.4"W |
| Maidenhead | CN87tp |
| FRN | 0020198008 |
| Licensee ID/SGIN | L01592914 / 000 |
| Licensee Class | E - Amateur Extra |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 4 / 7 / WA |
| Prev Callsign / Prev Class | KJ4YKO G - General |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | E - By List |
| ULS File Number | |
| Phonetic weight / Morse weight | 10 / 54 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2011-04-26 | LIISS - License Issued |
| 2011-04-26 | VANGRT - Vanity Call Sign Assigned |
| 2021-01-26 | LIAUA - Administrative Update Applied |
| 2021-01-28 | LIREN - License Renewed |
| 2023-05-09 | LIAUA - Administrative Update Applied |
| 2025-06-17 | LIAUA - Administrative Update Applied |