Universal Licensing System
501CF
Professional Office Services
License details
| ULS identifier | 1068658 |
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| Call sign | 501CF |
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| Radio service | AC |
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| Status | E |
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| Grant date | 1999-12-10 |
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| Expiration | 2009-12-10 |
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| Cancellation | 2010-02-13 |
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| Source archive | l_aircr.zip |
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| Dataset refreshed | 2026-08-02 01:40:24 |
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Licensee
| Name | Professional Office Services |
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| Applicant type | C |
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| FRN | 0002588226 |
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| Location | Waterloo, IA |
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| Address | 2757 Burton Avenue, Waterloo, IA, 50704 |
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License history
| Date | File or call sign | Action |
|---|
| 2010-02-13 | 501CF | LIEXP |
| 2009-09-14 | 501CF | LETRES |
| 1999-12-10 | 501CF | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1068658 | 2026-08-02 01:40:24 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | 501CF | ULS 1068658 | 2026-08-02 01:40:24 |
| Status | E | ULS 1068658 | 2026-08-02 01:40:24 |
| Service | AC | ULS 1068658 | 2026-08-02 01:40:24 |
| Grant Date | 1999-12-10 | ULS 1068658 | 2026-08-02 01:40:24 |
| Expiration Date | 2009-12-10 | ULS 1068658 | 2026-08-02 01:40:24 |
| Cancellation Date | 2010-02-13 | ULS 1068658 | 2026-08-02 01:40:24 |