Universal Licensing System
WLL837
MCI WORLDCOM NETWORK SERVICES, INC
License details
| ULS identifier | 994187 |
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| Call sign | WLL837 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 2001-02-13 |
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| Expiration | 2011-02-01 |
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| Cancellation | 2001-06-07 |
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| Frequency range | 2165.2 - 18585 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | BELVIDERE, WINNEBAGO, IL |
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| Coordinates | 42.2347222, -88.8789722 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:45:12 |
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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 BLVD 2865/642, RICHARDSON, TX, 75082 |
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| Phone | 9726565287 |
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| Email | [email protected] |
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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 | 2 | FXO | 2165.20000000 | | | | | |
| 1 | 1 | FXO | 18585.00000000 | | | | | |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | BELVIDERE, WINNEBAGO, IL | 42.23472222, -88.87897222 | 0.000 m | | | |
| 2 | R | | 42.04030556, -89.31397222 | 261.800 m | | | |
| 3 | R | | 42.23472222, -88.87063889 | 242.900 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | | 90.0000 | | |
| 1 | 2 | R | | | | | | | |
| 1 | 3 | R | | | | | | | |
| 2 | 1 | T | | | V | | 239.2000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2001-06-08 | WLL837 | LICAN |
| 2001-03-07 | WLL837 | LIAUA |
| 2001-02-13 | WLL837 | LIREN |
| 2000-11-13 | WLL837 | LETRES |
| 1999-08-14 | WLL837 | LICCNV |
| 1999-08-03 | WLL837 | COR |
| 1999-02-11 | WLL837 | LITRAN |
| 1997-05-23 | WLL837 | COR |
| 1997-05-21 | WLL837 | COR |
| 1991-06-26 | WLL837 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 994187 | 2026-08-02 02:45:12 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WLL837 | ULS 994187 | 2026-08-02 02:45:12 |
| Status | C | ULS 994187 | 2026-08-02 02:45:12 |
| Service | CF | ULS 994187 | 2026-08-02 02:45:12 |
| Grant Date | 2001-02-13 | ULS 994187 | 2026-08-02 02:45:12 |
| Expiration Date | 2011-02-01 | ULS 994187 | 2026-08-02 02:45:12 |
| Cancellation Date | 2001-06-07 | ULS 994187 | 2026-08-02 02:45:12 |