Universal Licensing System
WLJ21
MCI WORLDCOM NETWORK SERVICES INC
License details
| ULS identifier | 992486 |
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| Call sign | WLJ21 |
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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 | 6197.2 - 6404.8 MHz (16 frequencies) |
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| Locations | 3 |
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| Representative location | HARTFORD, TRUMBULL, OH |
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| Coordinates | 41.3014444, -80.5642222 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:43 |
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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 |
|---|
| 1 | 1 | FXO | 6197.20000000 | | | | | |
| 1 | 2 | FXO | 6197.20000000 | | | | | |
| 1 | 1 | FXO | 6197.24000000 | | | | | |
| 1 | 2 | FXO | 6197.24000000 | | | | | |
| 1 | 3 | FXO | 6226.89000000 | | | | | |
| 1 | 4 | FXO | 6226.89000000 | | | | | |
| 1 | 3 | FXO | 6226.90000000 | | | | | |
| 1 | 4 | FXO | 6226.90000000 | | | | | |
| 1 | 1 | FXO | 6256.50000000 | | | | | |
| 1 | 2 | FXO | 6256.50000000 | | | | | |
| 1 | 1 | FXO | 6256.54000000 | | | | | |
| 1 | 2 | FXO | 6256.54000000 | | | | | |
| 1 | 3 | FXO | 6286.19000000 | | | | | |
| 1 | 4 | FXO | 6286.19000000 | | | | | |
| 1 | 3 | FXO | 6286.20000000 | | | | | |
| 1 | 4 | FXO | 6286.20000000 | | | | | |
| 1 | 1 | FXO | 6315.84000000 | | | | | |
| 1 | 2 | FXO | 6315.84000000 | | | | | |
| 1 | 1 | FXO | 6315.90000000 | | | | | |
| 1 | 2 | FXO | 6315.90000000 | | | | | |
| 1 | 3 | FXO | 6345.49000000 | | | | | |
| 1 | 4 | FXO | 6345.49000000 | | | | | |
| 1 | 3 | FXO | 6345.50000000 | | | | | |
| 1 | 4 | FXO | 6345.50000000 | | | | | |
| 1 | 1 | FXO | 6375.14000000 | | | | | |
| 1 | 2 | FXO | 6375.14000000 | | | | | |
| 1 | 1 | FXO | 6375.20000000 | | | | | |
| 1 | 2 | FXO | 6375.20000000 | | | | | |
| 1 | 3 | FXO | 6404.79000000 | | | | | |
| 1 | 4 | FXO | 6404.79000000 | | | | | |
| 1 | 3 | FXO | 6404.80000000 | | | | | |
| 1 | 4 | FXO | 6404.80000000 | | | | | |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 7 MI SE OF, HARTFORD, TRUMBULL, OH | 41.30144444, -80.56422222 | 354.500 m | | 54.900 m overall | |
| 2 | R | | 41.01255556, -80.55533333 | 373.700 m | | | |
| 3 | R | | 41.50891667, -81.00897222 | 337.700 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | | 178.7000 | | |
| 1 | 2 | R | | | | | | | |
| 1 | 3 | R | | | | | | | |
| 2 | 1 | T | | | H | | 301.9000 | | |
| 2 | 2 | R | | | | | | | |
| 2 | 3 | R | | | | | | | |
| 3 | 1 | T | | | H | | 178.7000 | | |
| 4 | 1 | T | | | V | | 301.9000 | | |
License history
| Date | File or call sign | Action |
|---|
| 1999-08-14 | WLJ21 | LICCNV |
| 1997-10-29 | WLJ21 | LICAN |
| 1991-04-01 | WLJ21 | LIREN |
| 1988-08-04 | WLJ21 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 992486 | 2026-08-02 02:47:43 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WLJ21 | ULS 992486 | 2026-08-02 02:47:43 |
| Status | C | ULS 992486 | 2026-08-02 02:47:43 |
| Service | CF | ULS 992486 | 2026-08-02 02:47:43 |
| Grant Date | 1991-04-01 | ULS 992486 | 2026-08-02 02:47:43 |
| Expiration Date | 2001-02-01 | ULS 992486 | 2026-08-02 02:47:43 |
| Cancellation Date | 1997-10-29 | ULS 992486 | 2026-08-02 02:47:43 |