Universal Licensing System
WLM779
SOUTHWESTERN BELL MOBILE SYSTEMS
License details
| ULS identifier | 994805 |
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| Call sign | WLM779 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 1993-11-22 |
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| Expiration | 2000-08-01 |
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| Cancellation | 2000-05-15 |
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| Frequency range | 2124.8 - 2178 MHz (3 frequencies) |
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| Locations | 3 |
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| Representative location | NAPERVILLE, DUPAGE, IL |
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| Coordinates | 41.7986389, -88.1153333 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:45:29 |
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Licensee
| Name | SOUTHWESTERN BELL MOBILE SYSTEMS |
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| Applicant type | C |
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| Location | DALLAS, TX |
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| Address | 17330 PRESTON RD SUITE 100A, DALLAS, TX, 75252 |
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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 | 2 | FXO | 2124.80000000 | | | | | |
| 1 | 1 | FXO | 2165.20000000 | | | | | |
| 1 | 1 | FXO | 2178.00000000 | | | | | |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 25 W 123 RIDGELAND RD, NAPERVILLE, DUPAGE, IL | 41.79863889, -88.11533333 | 233.200 m | | 49.400 m overall | |
| 2 | R | | 33.38091667, -86.94386111 | 239.600 m | | | |
| 3 | R | | | 0.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | | V | | 172.4000 | | |
| 1 | 2 | R | | | | | | | |
| 1 | 3 | R | | | | | | | |
| 2 | 1 | T | | | H | | 173.3000 | | |
License history
| Date | File or call sign | Action |
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| 2000-05-16 | WLM779 | LICAN |
| 2000-05-07 | WLM779 | LETRES |
| 1999-08-14 | WLM779 | LICCNV |
| 1997-06-23 | WLM779 | COR |
| 1997-05-28 | WLM779 | COR |
| 1993-11-22 | WLM779 | LITRAN |
| 1991-11-07 | WLM779 | LIMOD |
| 1987-01-22 | WLM779 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 994805 | 2026-08-02 02:45:29 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WLM779 | ULS 994805 | 2026-08-02 02:45:29 |
| Status | C | ULS 994805 | 2026-08-02 02:45:29 |
| Service | CF | ULS 994805 | 2026-08-02 02:45:29 |
| Grant Date | 1993-11-22 | ULS 994805 | 2026-08-02 02:45:29 |
| Expiration Date | 2000-08-01 | ULS 994805 | 2026-08-02 02:45:29 |
| Cancellation Date | 2000-05-15 | ULS 994805 | 2026-08-02 02:45:29 |