Universal Licensing System
WSWM
DIAMOND OFFSHORE DRILLING INC
License details
| ULS identifier | 1567412 |
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| Call sign | WSWM |
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| Radio service | SB |
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| Status | E |
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| Grant date | 1999-04-30 |
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| Expiration | 2009-04-30 |
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| Cancellation | 2009-07-04 |
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| Source archive | l_ship.zip |
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| Dataset refreshed | 2026-08-02 02:58:13 |
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Licensee
| Name | DIAMOND OFFSHORE DRILLING INC |
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| Applicant type | C |
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| Location | HOUSTON, TX |
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| Address | 15415 KATY FREEWAY STE 100, HOUSTON, TX, 77094 |
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License history
| Date | File or call sign | Action |
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| 2009-07-04 | WSWM | LIEXP |
| 2009-02-02 | WSWM | LETRES |
| 2000-11-17 | WSWM | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1567412 | 2026-08-02 02:58:13 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WSWM | ULS 1567412 | 2026-08-02 02:58:13 |
| Status | E | ULS 1567412 | 2026-08-02 02:58:13 |
| Service | SB | ULS 1567412 | 2026-08-02 02:58:13 |
| Grant Date | 1999-04-30 | ULS 1567412 | 2026-08-02 02:58:13 |
| Expiration Date | 2009-04-30 | ULS 1567412 | 2026-08-02 02:58:13 |
| Cancellation Date | 2009-07-04 | ULS 1567412 | 2026-08-02 02:58:13 |