Universal Licensing System
WOI81
MCI WORLDCOM NETWORK SERVICES INC
License details
| ULS identifier | 1033537 |
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| Call sign | WOI81 |
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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 | 3750 - 6286.19 MHz (13 frequencies) |
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| Locations | 4 |
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| Representative location | GILA BEND, MARICOPA, AZ |
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| Coordinates | 33.0511389, -113.1351667 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-09 15:44:53 |
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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 | 3 | FXO | 3750.00000000 | | | | | |
| 1 | 4 | FXO | 3770.00000000 | | | | | |
| 1 | 3 | FXO | 3830.00000000 | | | | | |
| 1 | 4 | FXO | 3850.00000000 | | | | | |
| 1 | 3 | FXO | 3910.00000000 | | | | | |
| 1 | 3 | FXO | 4150.00000000 | | | | | |
| 1 | 4 | FXO | 4170.00000000 | | | | | |
| 1 | 1 | FXO | 5945.20000000 | | | | | |
| 1 | 2 | FXO | 5945.20000000 | | | | | |
| 1 | 5 | FXO | 5974.85000000 | | | | | |
| 1 | 6 | FXO | 5974.85000000 | | | | | |
| 1 | 1 | FXO | 6004.50000000 | | | | | |
| 1 | 2 | FXO | 6004.50000000 | | | | | |
| 1 | 5 | FXO | 6034.15000000 | | | | | |
| 1 | 6 | FXO | 6034.15000000 | | | | | |
| 1 | 1 | FXO | 6063.80000000 | | | | | |
| 1 | 2 | FXO | 6063.80000000 | | | | | |
| 1 | 5 | FXO | 6093.45000000 | | | | | |
| 1 | 6 | FXO | 6093.45000000 | | | | | |
| 1 | 1 | FXO | 6123.10000000 | | | | | |
| 1 | 2 | FXO | 6123.10000000 | | | | | |
| 1 | 5 | FXO | 6152.75000000 | | | | | |
| 1 | 6 | FXO | 6152.75000000 | | | | | |
| 1 | 2 | FXO | 6197.24000000 | | | | | |
| 1 | 6 | FXO | 6226.89000000 | | | | | |
| 1 | 2 | FXO | 6256.54000000 | | | | | |
| 1 | 6 | FXO | 6286.19000000 | | | | | |
| 1 | 2 | FXO | 6315.84000000 | | | | | |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 25.3 MI NE OF, GILA BEND, MARICOPA, AZ | 33.05113889, -113.13516667 | 524.300 m | | 27.400 m overall | |
| 2 | R | | 32.66975000, -114.33547222 | 478.800 m | | | |
| 3 | R | | 33.56947222, -112.55988889 | 1222.200 m | | | |
| 4 | R | | 32.72669444, -113.74713889 | 169.800 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | H | | 42.8000 | | |
| 1 | 2 | R | | | | | | | |
| 1 | 3 | R | | | | | | | |
| 1 | 4 | R | | | | | | | |
| 2 | 1 | T | | | V | | 238.0000 | | |
| 2 | 2 | R | | | | | | | |
| 2 | 3 | R | | | | | | | |
| 2 | 4 | R | | | | | | | |
| 3 | 1 | T | | | H | | 249.7000 | | |
| 4 | 1 | T | | | V | | 249.7000 | | |
| 5 | 1 | T | | | V | | 42.8000 | | |
| 6 | 1 | T | | | H | | 238.0000 | | |
License history
| Date | File or call sign | Action |
|---|
| 1999-08-14 | WOI81 | LICCNV |
| 1997-12-22 | WOI81 | COR |
| 1997-10-29 | WOI81 | LICAN |
| 1991-04-01 | WOI81 | LIREN |
| 1990-04-03 | WOI81 | LIMOD |
| 1988-07-28 | WOI81 | LIMOD |
| 1988-06-23 | WOI81 | LIMOD |
| 1987-01-15 | WOI81 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1033537 | 2026-08-09 15:44:53 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WOI81 | ULS 1033537 | 2026-08-09 15:44:53 |
| Status | C | ULS 1033537 | 2026-08-09 15:44:53 |
| Service | CF | ULS 1033537 | 2026-08-09 15:44:53 |
| Grant Date | 1991-04-01 | ULS 1033537 | 2026-08-09 15:44:53 |
| Expiration Date | 2001-02-01 | ULS 1033537 | 2026-08-09 15:44:53 |
| Cancellation Date | 1997-10-29 | ULS 1033537 | 2026-08-09 15:44:53 |