Universal Licensing System
WLB740
MCI WORLDCOM NETWORK SERVICES INC
License details
| ULS identifier | 988021 |
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| Call sign | WLB740 |
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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 | 11585 - 11665 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | SIOUX FALLS, MINNEHAHA, SD |
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| Coordinates | 43.5419167, -96.7272500 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:58 |
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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 | 11585.00000000 | | | | | |
| 1 | 1 | FXO | 11665.00000000 | | | | | |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 501 S. PHILLIPS AVE, SIOUX FALLS, MINNEHAHA, SD | 43.54191667, -96.72725000 | 439.500 m | | 61.000 m overall | |
| 2 | R | | 43.48663889, -96.73725000 | 463.300 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 | | 187.5000 | | |
| 1 | 2 | R | | | | | | | |
License history
| Date | File or call sign | Action |
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| 1999-08-13 | WLB740 | LICCNV |
| 1997-10-29 | WLB740 | LICAN |
| 1991-04-01 | WLB740 | LIREN |
| 1985-05-16 | WLB740 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 988021 | 2026-08-02 02:47:58 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WLB740 | ULS 988021 | 2026-08-02 02:47:58 |
| Status | C | ULS 988021 | 2026-08-02 02:47:58 |
| Service | CF | ULS 988021 | 2026-08-02 02:47:58 |
| Grant Date | 1991-04-01 | ULS 988021 | 2026-08-02 02:47:58 |
| Expiration Date | 2001-02-01 | ULS 988021 | 2026-08-02 02:47:58 |
| Cancellation Date | 1997-10-29 | ULS 988021 | 2026-08-02 02:47:58 |