Universal Licensing System
WLC437
MCI WORLDCOM NETWORK SERVICES INC
License details
| ULS identifier | 988410 |
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| Call sign | WLC437 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 1991-04-01 |
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| Expiration | 2001-02-01 |
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| Cancellation | 1997-10-29 |
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| Frequency range | 5945.2 - 6152.75 MHz (8 frequencies) |
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| Locations | 1 |
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| Representative location | KYBURZ, EL DORADO, CA |
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| Coordinates | 38.8421111, -120.4076944 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:45 |
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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 | 5945.20000000 | | | | | |
| 1 | 3 | FXO | 5974.85000000 | | | | | |
| 1 | 4 | FXO | 5974.85000000 | | | | | |
| 1 | 1 | FXO | 6004.50000000 | | | | | |
| 1 | 2 | FXO | 6004.50000000 | | | | | |
| 1 | 3 | FXO | 6034.15000000 | | | | | |
| 1 | 4 | FXO | 6034.15000000 | | | | | |
| 1 | 1 | FXO | 6063.80000000 | | | | | |
| 1 | 2 | FXO | 6063.80000000 | | | | | |
| 1 | 3 | FXO | 6093.45000000 | | | | | |
| 1 | 4 | FXO | 6093.45000000 | | | | | |
| 1 | 1 | FXO | 6123.10000000 | | | | | |
| 1 | 2 | FXO | 6123.10000000 | | | | | |
| 1 | 3 | FXO | 6152.75000000 | | | | | |
| 1 | 4 | FXO | 6152.75000000 | | | | | |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 7.5 MI NW OF, KYBURZ, EL DORADO, CA | 38.84211111, -120.40769444 | 1868.700 m | | 48.800 m overall | |
| 2 | R | | 39.14988889, -120.24825000 | 2588.400 m | | | |
| 3 | R | | 38.90405556, -120.70491667 | 1399.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | H | | 22.0000 | | |
| 1 | 2 | R | | | | | | | |
| 1 | 3 | R | | | | | | | |
| 2 | 1 | T | | | H | | 285.0000 | | |
| 2 | 2 | R | | | | | | | |
| 2 | 3 | R | | | | | | | |
| 3 | 1 | T | | | V | | 22.0000 | | |
| 4 | 1 | T | | | V | | 285.0000 | | |
License history
| Date | File or call sign | Action |
|---|
| 1999-08-13 | WLC437 | LICCNV |
| 1997-12-22 | WLC437 | COR |
| 1997-10-29 | WLC437 | LICAN |
| 1991-04-01 | WLC437 | LIREN |
| 1988-06-23 | WLC437 | LIMOD |
| 1987-03-26 | WLC437 | LIMOD |
| 1986-06-05 | WLC437 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 988410 | 2026-08-02 02:47:45 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WLC437 | ULS 988410 | 2026-08-02 02:47:45 |
| Status | C | ULS 988410 | 2026-08-02 02:47:45 |
| Service | CF | ULS 988410 | 2026-08-02 02:47:45 |
| Grant Date | 1991-04-01 | ULS 988410 | 2026-08-02 02:47:45 |
| Expiration Date | 2001-02-01 | ULS 988410 | 2026-08-02 02:47:45 |
| Cancellation Date | 1997-10-29 | ULS 988410 | 2026-08-02 02:47:45 |