Universal Licensing System
W4OJ
License details
| ULS identifier | 2781223 |
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| Call sign | W4OJ |
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| Radio service | HV |
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| Status | C |
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| Grant date | 2006-01-27 |
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| Expiration | 2016-01-27 |
|---|
| Cancellation | 2006-03-11 |
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| Source archive | l_amat.zip |
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| Dataset refreshed | 2026-08-02 01:54:08 |
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Licensee
| Name | Gefaell, Jon |
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| Applicant type | I |
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| FRN | 0005499454 |
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| Location | Mountain View, CA |
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License history
| Date | File or call sign | Action |
|---|
| 2006-03-11 | W4OJ | LICAN |
| 2006-01-27 | W4OJ | LIISS |
| 2006-01-27 | W4OJ | VANGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2781223 | 2026-08-02 01:54:08 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | W4OJ | ULS 2781223 | 2026-08-02 01:54:08 |
| Status | C | ULS 2781223 | 2026-08-02 01:54:08 |
| Service | HV | ULS 2781223 | 2026-08-02 01:54:08 |
| Grant Date | 2006-01-27 | ULS 2781223 | 2026-08-02 01:54:08 |
| Expiration Date | 2016-01-27 | ULS 2781223 | 2026-08-02 01:54:08 |
| Cancellation Date | 2006-03-11 | ULS 2781223 | 2026-08-02 01:54:08 |