Universal Licensing System
WOI55
MCI WORLDCOM NETWORK SERVICES INC
License details
| ULS identifier | 1033530 |
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| Call sign | WOI55 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 1991-10-10 |
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| Expiration | 2001-02-01 |
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| Cancellation | 2000-04-07 |
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| Frequency range | 4010 - 11175 MHz (6 frequencies) |
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| Locations | 2 |
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| Representative location | SAN DIEGO, SAN DIEGO, CA |
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| Coordinates | 32.8294722, -117.1336389 |
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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 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 | 4010.00000000 | | | | | |
| 1 | 1 | FXO | 4090.00000000 | | | | | |
| 1 | 2 | FXO | 4150.00000000 | | | | | |
| 1 | 1 | FXO | 4170.00000000 | | | | | |
| 1 | 1 | FXO | 10775.00000000 | | | | | |
| 1 | 1 | FXO | 11175.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 4010.00000000 | | 20M0F8W |
| 1 | 1 | 4090.00000000 | | 20M0F8W |
| 1 | 2 | 4150.00000000 | | 20M0F8W |
| 1 | 1 | 4170.00000000 | | 20M0F8W |
| 1 | 1 | 10775.00000000 | | 40M0D7W |
| 1 | 1 | 11175.00000000 | | 40M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 8933 COMPLEX DRIVE, SAN DIEGO, SAN DIEGO, CA | 32.82947222, -117.13363889 | 129.800 m | | 9.800 m overall | |
| 2 | R | | 33.00919444, -116.97225000 | 862.300 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | 37.4000 | 37.1000 | | |
| 1 | 2 | R | | | | 37.4000 | | | |
| 2 | 1 | T | | | H | 37.4000 | 37.1000 | | |
| 2 | 2 | R | | | | 37.4000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 2000-04-08 | WOI55 | LICAN |
| 1999-08-14 | WOI55 | LICCNV |
| 1999-03-29 | WOI55 | COR |
| 1999-02-11 | WOI55 | LITRAN |
| 1991-10-10 | WOI55 | LIMOD |
| 1991-04-01 | WOI55 | LIREN |
| 1990-05-02 | WOI55 | LIMOD |
| 1988-10-04 | WOI55 | LIMOD |
| 1985-05-16 | WOI55 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1033530 | 2026-08-02 02:45:12 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WOI55 | ULS 1033530 | 2026-08-02 02:45:12 |
| Status | C | ULS 1033530 | 2026-08-02 02:45:12 |
| Service | CF | ULS 1033530 | 2026-08-02 02:45:12 |
| Grant Date | 1991-10-10 | ULS 1033530 | 2026-08-02 02:45:12 |
| Expiration Date | 2001-02-01 | ULS 1033530 | 2026-08-02 02:45:12 |
| Cancellation Date | 2000-04-07 | ULS 1033530 | 2026-08-02 02:45:12 |