Universal Licensing System
WLC818
MCI WORLDCOM NETWORK SERVICES INC
License details
| ULS identifier | 988712 |
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| Call sign | WLC818 |
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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 | 2000-06-29 |
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| Frequency range | 3770 - 4170 MHz (6 frequencies) |
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| Locations | 2 |
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| Coordinates | 38.8949722, -104.5974444 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:45:09 |
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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 | 3770.00000000 | | | | | |
| 1 | 2 | FXO | 3770.00000000 | | | | | |
| 1 | 1 | FXO | 3850.00000000 | | | | | |
| 1 | 2 | FXO | 3850.00000000 | | | | | |
| 1 | 1 | FXO | 3930.00000000 | | | | | |
| 1 | 2 | FXO | 3930.00000000 | | | | | |
| 1 | 1 | FXO | 4010.00000000 | | | | | |
| 1 | 2 | FXO | 4010.00000000 | | | | | |
| 1 | 1 | FXO | 4090.00000000 | | | | | |
| 1 | 2 | FXO | 4090.00000000 | | | | | |
| 1 | 1 | FXO | 4170.00000000 | | | | | |
| 1 | 2 | FXO | 4170.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 3770.00000000 | | 20M0A7W |
| 1 | 2 | 3770.00000000 | | 20M0A7W |
| 1 | 1 | 3850.00000000 | | 20M0A7W |
| 1 | 2 | 3850.00000000 | | 20M0A7W |
| 1 | 1 | 3930.00000000 | | 20M0A7W |
| 1 | 2 | 3930.00000000 | | 20M0A7W |
| 1 | 1 | 4010.00000000 | | 20M0A7W |
| 1 | 2 | 4010.00000000 | | 20M0A7W |
| 1 | 1 | 4090.00000000 | | 20M0A7W |
| 1 | 2 | 4090.00000000 | | 20M0A7W |
| 1 | 1 | 4170.00000000 | | 20M0A7W |
| 1 | 2 | 4170.00000000 | | 20M0A7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 3 MIL NW OF, PINON, PUEBLO, CO | 38.47219444, -104.65413889 | 1619.100 m | | 32.900 m overall | |
| 2 | R | | 38.89497222, -104.59744444 | 2068.400 m | | | |
| 3 | R | | 37.90083333, -104.82052778 | 1902.600 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | 39.2000 | 6.0000 | | |
| 1 | 2 | R | | | | 39.2000 | | | |
| 1 | 3 | R | | | | 41.3000 | | | |
| 2 | 1 | T | | | V | 41.3000 | 193.0000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2000-06-30 | WLC818 | LICAN |
| 1999-08-13 | WLC818 | LICCNV |
| 1999-02-11 | WLC818 | LITRAN |
| 1991-04-01 | WLC818 | LIREN |
| 1988-08-11 | WLC818 | LIMOD |
| 1988-07-28 | WLC818 | LIMOD |
| 1988-06-23 | WLC818 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 988712 | 2026-08-02 02:45:09 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WLC818 | ULS 988712 | 2026-08-02 02:45:09 |
| Status | C | ULS 988712 | 2026-08-02 02:45:09 |
| Service | CF | ULS 988712 | 2026-08-02 02:45:09 |
| Grant Date | 1991-04-01 | ULS 988712 | 2026-08-02 02:45:09 |
| Expiration Date | 2001-02-01 | ULS 988712 | 2026-08-02 02:45:09 |
| Cancellation Date | 2000-06-29 | ULS 988712 | 2026-08-02 02:45:09 |