| Callsign | KY4X |
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| Radio Service | HV - Vanity |
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| License Status | A - Active |
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| Grant Date | 2026-09-17 |
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| Effective Date | 2026-09-17 |
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| Expire Date | 2036-11-04 |
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| Cancel Date | |
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| Last Action Date | 2026-09-17 |
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| End Date | 2036-11-04 |
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| Available Date | 2038-11-05 |
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| Applicant Type | B - Amateur Club |
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| Entity Name | MAMMOTH CAVE AMATEUR RADIO CLUB |
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| Street Address / Locality | PO Box 1062
Glasgow, KY 42142 |
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| County | Barren |
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| Zip Location | 36°59'45.2"N 85°54'42.8"W |
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| Maidenhead | EM76bx |
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| FRN | 0015672538 |
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| Licensee ID/SGIN | L01207933 / 000 |
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| Licensee Class | |
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| Callsign Group | A - 2x1 |
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| ULS/Geo Region | 4 / 4 / KY |
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| Prev Callsign / Prev Class | KF4APZ |
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| Next Callsign | |
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| Trustee Callsign / Trustee Name | KJ4CMG Hess, Herbert S |
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| Vanity Type | F - By List (Club) |
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| ULS File Number | 0012177604 |
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| Phonetic weight / Morse weight | 8 / 56 |
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