Universal Licensing System
WLL654
MCI WorldCom Network Services, Inc. (debtor-in-possession)
License details
| ULS identifier | 994019 |
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| Call sign | WLL654 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 2001-01-30 |
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| Expiration | 2011-02-01 |
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| Cancellation | 2003-11-24 |
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| Frequency range | 10855 MHz |
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| Locations | 2 |
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| Representative location | ARGONNE, DUPAGE, IL |
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| Coordinates | 41.7155833, -87.9839444 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:46:10 |
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Licensee
| Name | MCI WorldCom Network Services, Inc. (debtor-in-possession) |
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| Applicant type | C |
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| Location | RICHARDSON, TX |
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| Address | 2400 NORTH GLENVILLE 42955/107, RICHARDSON, TX, 75082 |
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| Phone | 9727296406 |
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| Email | [email protected] |
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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 | 10855.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 10855.00000000 | | 40M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 9700 S CASS AVE, ARGONNE, DUPAGE, IL | 41.71558333, -87.98394444 | 227.100 m | | 16.800 m overall | |
| 2 | R | | 41.77280556, -87.99727778 | 230.100 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 | 44.0000 | 350.1000 | | |
| 1 | 2 | R | | | | 44.0000 | | | |
License history
| Date | File or call sign | Action |
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| 2003-11-25 | WLL654 | LICAN |
| 2003-02-12 | WLL654 | LIAUA |
| 2003-01-15 | WLL654 | LIAUA |
| 2003-01-14 | WLL654 | LIAUA |
| 2002-07-21 | WLL654 | LIASS |
| 2001-03-07 | WLL654 | LIAUA |
| 2001-01-30 | WLL654 | LIREN |
| 2000-11-13 | WLL654 | LETRES |
| 1999-08-14 | WLL654 | LICCNV |
| 1999-02-11 | WLL654 | LITRAN |
| 1997-05-23 | WLL654 | COR |
| 1997-05-20 | WLL654 | COR |
| 1991-08-22 | WLL654 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 994019 | 2026-08-02 02:46:10 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WLL654 | ULS 994019 | 2026-08-02 02:46:10 |
| Status | C | ULS 994019 | 2026-08-02 02:46:10 |
| Service | CF | ULS 994019 | 2026-08-02 02:46:10 |
| Grant Date | 2001-01-30 | ULS 994019 | 2026-08-02 02:46:10 |
| Expiration Date | 2011-02-01 | ULS 994019 | 2026-08-02 02:46:10 |
| Cancellation Date | 2003-11-24 | ULS 994019 | 2026-08-02 02:46:10 |