Universal Licensing System
WRFV578
OptimERA, Inc
License details
| ULS identifier | 4278300 |
|---|
| Call sign | WRFV578 |
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| Radio service | CW |
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| Status | E |
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| Grant date | 2020-06-10 |
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| Expiration | 2020-08-31 |
|---|
| Cancellation | 2020-10-17 |
|---|
| Source archive | l_market.zip |
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| Dataset refreshed | 2026-08-02 02:29:19 |
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License history
| Date | File or call sign | Action |
|---|
| 2020-10-17 | WRFV578 | LIEXP |
| 2020-06-10 | WRFV578 | LIREN |
| 2020-05-13 | WRFV578 | AUTHPR |
| 2020-05-12 | WRFV578 | COR |
| 2020-05-12 | WRFV578 | INTDUP |
| 2020-05-12 | WRFV578 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4278300 | 2026-08-02 02:29:19 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRFV578 | ULS 4278300 | 2026-08-02 02:29:19 |
| Status | E | ULS 4278300 | 2026-08-02 02:29:19 |
| Service | CW | ULS 4278300 | 2026-08-02 02:29:19 |
| Grant Date | 2020-06-10 | ULS 4278300 | 2026-08-02 02:29:19 |
| Expiration Date | 2020-08-31 | ULS 4278300 | 2026-08-02 02:29:19 |
| Cancellation Date | 2020-10-17 | ULS 4278300 | 2026-08-02 02:29:19 |