Universal Licensing System
WLC521
MCI WORLDCOM NETWORK SERVICES INC
License details
| ULS identifier | 988476 |
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| Call sign | WLC521 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 1985-09-26 |
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| Expiration | 1997-10-29 |
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| Cancellation | 1997-10-29 |
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| Frequency range | 10735 - 11015 MHz (5 frequencies) |
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| Locations | 2 |
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| Representative location | ATLANTA, DEKALB, GA |
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| Coordinates | 33.9298056, -84.3385278 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:51 |
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Licensee
| Name | MCI WORLDCOM NETWORK SERVICES INC |
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| Applicant type | C |
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| Location | RICHARDSON, TX |
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| Address | 2270 LAKESIDE DR, RICHARDSON, TX, 75082 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | FXO | 10735.00000000 | | | | | |
| 1 | 1 | FXO | 10815.00000000 | | | | | |
| 1 | 1 | FXO | 10895.00000000 | | | | | |
| 1 | 1 | FXO | 10975.00000000 | | | | | |
| 1 | 2 | FXO | 11015.00000000 | | | | | |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 400 PERIMETER CTR, ATLANTA, DEKALB, GA | 33.92980556, -84.33852778 | 298.700 m | | 51.800 m overall | |
| 2 | R | | 33.88980556, -84.46519444 | 301.100 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | | 249.3000 | | |
| 1 | 2 | R | | | | | | | |
| 2 | 1 | T | | | H | | 249.3000 | | |
| 2 | 2 | R | | | | | | | |
License history
| Date | File or call sign | Action |
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| 1999-08-13 | WLC521 | LICCNV |
| 1997-10-29 | WLC521 | LICAN |
| 1997-06-18 | WLC521 | COR |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 988476 | 2026-08-02 02:47:51 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WLC521 | ULS 988476 | 2026-08-02 02:47:51 |
| Status | C | ULS 988476 | 2026-08-02 02:47:51 |
| Service | CF | ULS 988476 | 2026-08-02 02:47:51 |
| Grant Date | 1985-09-26 | ULS 988476 | 2026-08-02 02:47:51 |
| Expiration Date | 1997-10-29 | ULS 988476 | 2026-08-02 02:47:51 |
| Cancellation Date | 1997-10-29 | ULS 988476 | 2026-08-02 02:47:51 |