| Callsign | NN3SI |
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| Radio Service | HV - Vanity |
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| License Status | A - Active |
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| Grant Date | 2019-01-01 |
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| Effective Date | 2026-07-10 |
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| Expire Date | 2029-01-01 |
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| Cancel Date | |
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| Last Action Date | 2026-07-10 |
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| End Date | 2029-01-01 |
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| Available Date | 2031-01-02 |
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| Applicant Type | B - Amateur Club |
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| Entity Name | Smithsonian Amateur Radio Group |
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| Street Address / Locality | MRC119, 10th And Constitution Ave NW
Washington, DC 20560 |
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| County | District of Columbia |
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| Zip Location | 38°53'17.6"N 77°01'33.3"W |
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| Maidenhead | FM18lv |
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| FRN | 0027718626 |
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| Licensee ID/SGIN | L02202382 / 000 |
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| Licensee Class | |
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| Callsign Group | B - 2x2 |
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| ULS/Geo Region | 3 / 3 / DC |
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| Prev Callsign / Prev Class | KN4OAO |
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| Next Callsign | |
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| Trustee Callsign / Trustee Name | AC3FM Wardell III, Lynn R |
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| Vanity Type | F - By List (Club) |
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| ULS File Number | 0012108676 |
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| Phonetic weight / Morse weight | 13 / 46 |
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