Universal Licensing System
WRCE532
SLACK TECHNOLOGIES, INC
License details
| ULS identifier | 4081528 |
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| Call sign | WRCE532 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2018-09-11 |
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| Expiration | 2028-09-11 |
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| Frequency range | 463.60625 - 469.06875 MHz (11 frequencies) |
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| Locations | 3 |
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| Representative location | SAN FRANCISCO, SAN FRANCISCO, CA |
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| Coordinates | 37.7883056, -122.3966944 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:22:17 |
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Licensee
| Name | SLACK TECHNOLOGIES, INC |
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| Applicant type | C |
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| FRN | 0027737964 |
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| Location | SAN FRANCISCO, CA |
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| Address | 500 HOWARD ST, SAN FRANCISCO, CA, 94105 |
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| Phone | 2144923059 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 463.60625000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 463.80625000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 463.85625000 | | | 5.000000 | 5.000000 | |
| 2 | 1 | MO | 464.04375000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 464.06875000 | | | 5.000000 | 5.000000 | |
| 2 | 1 | MO | 464.14375000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 464.21875000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 468.60625000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 468.80625000 | | | 5.000000 | 5.000000 | |
| 2 | 1 | MO | 469.04375000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 469.06875000 | | | 5.000000 | 5.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 463.60625000 | | 4K00F1E |
| 1 | 1 | 463.80625000 | | 4K00F1E |
| 1 | 1 | 463.85625000 | | 4K00F1E |
| 2 | 1 | 464.04375000 | | 4K00F1E |
| 3 | 1 | 464.06875000 | | 4K00F1E |
| 2 | 1 | 464.14375000 | | 4K00F1E |
| 3 | 1 | 464.21875000 | | 4K00F1E |
| 1 | 1 | 468.60625000 | | 4K00F1E |
| 1 | 1 | 468.80625000 | | 4K00F1E |
| 2 | 1 | 469.04375000 | | 4K00F1E |
| 3 | 1 | 469.06875000 | | 4K00F1E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | SAN FRANCISCO, SAN FRANCISCO, CA | 37.78830556, -122.39669444 | | | | |
| 2 | T | DENVER, DENVER, CO | 39.75855556, -104.99808333 | | | | |
| 3 | T | NEW YORK, NEW YORK, NY | 40.72950000, -73.99236111 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 500 HOWARD ST, SAN FRANCISCO, CA | SAN FRANCISCO | 2144923059 |
License history
| Date | File or call sign | Action |
|---|
| 2018-09-11 | WRCE532 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 4081528 | 2026-08-02 01:22:17 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WRCE532 | ULS 4081528 | 2026-08-02 01:22:17 |
| Status | A | ULS 4081528 | 2026-08-02 01:22:17 |
| Service | IG | ULS 4081528 | 2026-08-02 01:22:17 |
| Grant Date | 2018-09-11 | ULS 4081528 | 2026-08-02 01:22:17 |
| Expiration Date | 2028-09-11 | ULS 4081528 | 2026-08-02 01:22:17 |