Universal Licensing System
WO6421
CONTRA COSTA, COUNTY OF
License details
| ULS identifier | 1491297 |
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| Call sign | WO6421 |
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| Radio service | SA |
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| Status | A |
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| Grant date | 2024-05-03 |
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| Expiration | 2034-07-24 |
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| Source archive | l_ship.zip |
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| Dataset refreshed | 2026-08-02 02:57:38 |
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Licensee
| Name | CONTRA COSTA, COUNTY OF |
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| Applicant type | G |
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| FRN | 0001540145 |
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| Location | martinez, CA |
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| Address | 30 Douglas Drive, martinez, CA, 94553 |
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License history
| Date | File or call sign | Action |
|---|
| 2024-05-03 | WO6421 | LIREN |
| 2024-04-29 | WO6421 | LETRES |
| 2020-05-07 | WO6421 | LIAUA |
| 2014-05-08 | WO6421 | LIREN |
| 2014-04-28 | WO6421 | LETRES |
| 2012-06-16 | WO6421 | LIAUA |
| 2004-04-26 | WO6421 | LETRES |
| 2004-04-25 | WO6421 | ESURNW |
| 2000-12-20 | WO6421 | LIAUA |
| 2000-11-17 | WO6421 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1491297 | 2026-08-02 02:57:38 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WO6421 | ULS 1491297 | 2026-08-02 02:57:38 |
| Status | A | ULS 1491297 | 2026-08-02 02:57:38 |
| Service | SA | ULS 1491297 | 2026-08-02 02:57:38 |
| Grant Date | 2024-05-03 | ULS 1491297 | 2026-08-02 02:57:38 |
| Expiration Date | 2034-07-24 | ULS 1491297 | 2026-08-02 02:57:38 |