Universal Licensing System
6620R
Research Boston Corporation
License details
| ULS identifier | 2704543 |
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| Call sign | 6620R |
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| Radio service | AC |
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| Status | C |
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| Grant date | 2005-03-24 |
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| Expiration | 2015-03-24 |
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| Cancellation | 2015-01-05 |
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| Source archive | l_aircr.zip |
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| Dataset refreshed | 2026-08-02 01:39:14 |
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Licensee
| Name | Research Boston Corporation |
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| Applicant type | C |
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| FRN | 0013139100 |
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| Location | Lafayette, CA |
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| Address | 1160 Brown Ave., Lafayette, CA, 94549 |
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License history
| Date | File or call sign | Action |
|---|
| 2015-01-06 | 6620R | LICAN |
| 2014-12-29 | 6620R | LETRES |
| 2010-04-16 | 6620R | LIAUA |
| 2005-03-24 | 6620R | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2704543 | 2026-08-02 01:39:14 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | 6620R | ULS 2704543 | 2026-08-02 01:39:14 |
| Status | C | ULS 2704543 | 2026-08-02 01:39:14 |
| Service | AC | ULS 2704543 | 2026-08-02 01:39:14 |
| Grant Date | 2005-03-24 | ULS 2704543 | 2026-08-02 01:39:14 |
| Expiration Date | 2015-03-24 | ULS 2704543 | 2026-08-02 01:39:14 |
| Cancellation Date | 2015-01-05 | ULS 2704543 | 2026-08-02 01:39:14 |