Universal Licensing System
WLL587
MCI WORLDCOM NETWORK SERVICES INC
License details
| ULS identifier | 993955 |
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| Call sign | WLL587 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 1994-04-12 |
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| Expiration | 2001-02-01 |
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| Cancellation | 1996-11-12 |
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| Frequency range | 5974.85 - 6063.8 MHz (4 frequencies) |
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| Locations | 2 |
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| Representative location | HURON, FRESNO, CA |
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| Coordinates | 36.2993889, -120.1601389 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:39 |
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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 | 5945.20000000 | | | | | |
| 1 | 2 | FXO | 5974.85000000 | | | | | |
| 1 | 1 | FXO | 6004.50000000 | | | | | |
| 1 | 2 | FXO | 6034.15000000 | | | | | |
| 1 | 1 | FXO | 6063.80000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 5945.20000000 | | 30M0D7W |
| 1 | 2 | 5974.85000000 | | 30M0D7W |
| 1 | 1 | 6004.50000000 | | 30M0D7W |
| 1 | 2 | 6034.15000000 | | 30M0D7W |
| 1 | 1 | 6063.80000000 | | 30M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 7 MI NNW OF, HURON, FRESNO, CA | 36.29938889, -120.16013889 | 100.300 m | | 42.100 m overall | |
| 2 | R | | 36.51105556, -119.83625000 | 75.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | | V | 43.2000 | 51.0000 | | |
| 1 | 2 | R | | | | 43.2000 | | | |
| 2 | 1 | T | | | H | 43.2000 | 51.0000 | | |
| 2 | 2 | R | | | | 43.2000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 1999-08-14 | WLL587 | LICCNV |
| 1996-11-12 | WLL587 | LICAN |
| 1994-04-12 | WLL587 | LIMOD |
| 1993-04-23 | WLL587 | LIMOD |
| 1988-11-24 | WLL587 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 993955 | 2026-08-02 02:47:39 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WLL587 | ULS 993955 | 2026-08-02 02:47:39 |
| Status | C | ULS 993955 | 2026-08-02 02:47:39 |
| Service | CF | ULS 993955 | 2026-08-02 02:47:39 |
| Grant Date | 1994-04-12 | ULS 993955 | 2026-08-02 02:47:39 |
| Expiration Date | 2001-02-01 | ULS 993955 | 2026-08-02 02:47:39 |
| Cancellation Date | 1996-11-12 | ULS 993955 | 2026-08-02 02:47:39 |