Universal Licensing System
WDN4987
World Ocean School
License details
| ULS identifier | 4689796 |
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| Call sign | WDN4987 |
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| Radio service | SB |
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| Status | A |
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| Grant date | 2022-11-18 |
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| Expiration | 2032-11-18 |
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| Source archive | l_ship.zip |
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| Dataset refreshed | 2026-08-02 02:57:19 |
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Licensee
| Name | World Ocean School |
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| Applicant type | H |
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| FRN | 0011087954 |
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| Location | Boston, MA |
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| Address | Boston, MA, 02205 |
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License history
| Date | File or call sign | Action |
|---|
| 2022-11-18 | WDN4987 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4689796 | 2026-08-02 02:57:19 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WDN4987 | ULS 4689796 | 2026-08-02 02:57:19 |
| Status | A | ULS 4689796 | 2026-08-02 02:57:19 |
| Service | SB | ULS 4689796 | 2026-08-02 02:57:19 |
| Grant Date | 2022-11-18 | ULS 4689796 | 2026-08-02 02:57:19 |
| Expiration Date | 2032-11-18 | ULS 4689796 | 2026-08-02 02:57:19 |