Universal Licensing System
WIU88
MCI WORLDCOM NETWORK SERVICES INC
License details
| ULS identifier | 986774 |
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| Call sign | WIU88 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 1994-06-20 |
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| Expiration | 2001-02-01 |
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| Cancellation | 1998-04-30 |
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| Frequency range | 6197.24 - 6404.79 MHz (5 frequencies) |
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| Locations | 2 |
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| Representative location | TOWSON, BALTIMORE, MD |
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| Coordinates | 39.4028611, -76.6030000 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:48:12 |
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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 | 6197.24000000 | | | | | |
| 1 | 2 | FXO | 6226.89000000 | | | | | |
| 1 | 2 | FXO | 6286.19000000 | | | | | |
| 1 | 2 | FXO | 6345.49000000 | | | | | |
| 1 | 2 | FXO | 6404.79000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 6197.24000000 | | 30M0D7W |
| 1 | 2 | 6226.89000000 | | 30M0D7W |
| 1 | 2 | 6286.19000000 | | 30M0D7W |
| 1 | 2 | 6345.49000000 | | 30M0D7W |
| 1 | 2 | 6404.79000000 | | 30M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | ONE INVESTMENT PLAZA, TOWSON, BALTIMORE, MD | 39.40286111, -76.60300000 | 145.400 m | | 75.000 m overall | |
| 2 | R | | 39.49897222, -76.24216667 | 80.800 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | 41.3000 | 70.9000 | | |
| 1 | 2 | R | | | | 43.2000 | | | |
| 2 | 1 | T | | | H | 41.3000 | 70.9000 | | |
| 2 | 2 | R | | | | 43.2000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 1999-08-13 | WIU88 | LICCNV |
| 1998-04-30 | WIU88 | LICAN |
| 1994-06-20 | WIU88 | LIMOD |
| 1992-05-26 | WIU88 | LIMOD |
| 1991-04-01 | WIU88 | LIREN |
| 1988-08-25 | WIU88 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 986774 | 2026-08-02 02:48:12 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WIU88 | ULS 986774 | 2026-08-02 02:48:12 |
| Status | C | ULS 986774 | 2026-08-02 02:48:12 |
| Service | CF | ULS 986774 | 2026-08-02 02:48:12 |
| Grant Date | 1994-06-20 | ULS 986774 | 2026-08-02 02:48:12 |
| Expiration Date | 2001-02-01 | ULS 986774 | 2026-08-02 02:48:12 |
| Cancellation Date | 1998-04-30 | ULS 986774 | 2026-08-02 02:48:12 |