Universal Licensing System
WLB783
MCI WORLDCOM NETWORK SERVICES INC
License details
| ULS identifier | 988044 |
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| Call sign | WLB783 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 1991-05-03 |
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| Expiration | 2001-02-01 |
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| Cancellation | 1997-10-29 |
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| Frequency range | 6034.15 - 6093.45 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | TX |
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| Coordinates | 30.1257500, -95.9471667 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:55 |
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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 | 6034.15000000 | | | | | |
| 1 | 2 | FXO | 6034.15000000 | | | | | |
| 1 | 1 | FXO | 6093.45000000 | | | | | |
| 1 | 2 | FXO | 6093.45000000 | | | | | |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | TX | 30.12575000, -95.94716667 | 0.000 m | | | |
| 2 | R | | 29.82244444, -95.82300000 | 46.900 m | | | |
| 3 | R | | 30.47519444, -96.22216667 | 104.200 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | H | | 160.4000 | | |
| 1 | 2 | R | | | | | | | |
| 1 | 3 | R | | | | | | | |
| 2 | 1 | T | | | V | | 325.7000 | | |
License history
| Date | File or call sign | Action |
|---|
| 1999-08-13 | WLB783 | LICCNV |
| 1997-10-29 | WLB783 | LICAN |
| 1991-04-01 | WLB783 | LIREN |
| 1985-05-16 | WLB783 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 988044 | 2026-08-02 02:47:55 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WLB783 | ULS 988044 | 2026-08-02 02:47:55 |
| Status | C | ULS 988044 | 2026-08-02 02:47:55 |
| Service | CF | ULS 988044 | 2026-08-02 02:47:55 |
| Grant Date | 1991-05-03 | ULS 988044 | 2026-08-02 02:47:55 |
| Expiration Date | 2001-02-01 | ULS 988044 | 2026-08-02 02:47:55 |
| Cancellation Date | 1997-10-29 | ULS 988044 | 2026-08-02 02:47:55 |