Universal Licensing System
WLB578
MCI Communications Services, Inc.
License details
| ULS identifier | 987891 |
|---|
| Call sign | WLB578 |
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| Radio service | CF |
|---|
| Status | C |
|---|
| Grant date | 2001-01-23 |
|---|
| Expiration | 2011-02-01 |
|---|
| Cancellation | 2007-02-15 |
|---|
| Frequency range | 3770 - 4170 MHz (6 frequencies) |
|---|
| Locations | 1 |
|---|
| Representative location | ST IVES, ST. CLAIR, AL |
|---|
| Coordinates | 33.4545278, -86.3399722 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:45:56 |
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Licensee
| Name | MCI Communications Services, Inc. |
|---|
| Applicant type | C |
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| Location | Richardson, TX |
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| Address | 2400 N. Glenville Drive, Dept/Loc 71216/107, 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 |
|---|
| 1 | 1 | FXO | 3710.00000000 | | | | | |
| 1 | 2 | FXO | 3710.00000000 | | | | | |
| 1 | 3 | FXO | 3770.00000000 | | | | | |
| 1 | 4 | FXO | 3770.00000000 | | | | | |
| 1 | 1 | FXO | 3790.00000000 | | | | | |
| 1 | 2 | FXO | 3790.00000000 | | | | | |
| 1 | 3 | FXO | 3850.00000000 | | | | | |
| 1 | 4 | FXO | 3850.00000000 | | | | | |
| 1 | 1 | FXO | 3870.00000000 | | | | | |
| 1 | 2 | FXO | 3870.00000000 | | | | | |
| 1 | 3 | FXO | 3930.00000000 | | | | | |
| 1 | 4 | FXO | 3930.00000000 | | | | | |
| 1 | 1 | FXO | 3950.00000000 | | | | | |
| 1 | 2 | FXO | 3950.00000000 | | | | | |
| 1 | 3 | FXO | 4010.00000000 | | | | | |
| 1 | 4 | FXO | 4010.00000000 | | | | | |
| 1 | 3 | FXO | 4090.00000000 | | | | | |
| 1 | 4 | FXO | 4090.00000000 | | | | | |
| 1 | 3 | FXO | 4170.00000000 | | | | | |
| 1 | 4 | FXO | 4170.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 3710.00000000 | | 20M0F7W |
| 1 | 2 | 3710.00000000 | | 20M0F7W |
| 1 | 3 | 3770.00000000 | | 20M0F7W |
| 1 | 4 | 3770.00000000 | | 20M0F7W |
| 1 | 1 | 3790.00000000 | | 20M0F7W |
| 1 | 2 | 3790.00000000 | | 20M0F7W |
| 1 | 3 | 3850.00000000 | | 20M0F7W |
| 1 | 4 | 3850.00000000 | | 20M0F7W |
| 1 | 1 | 3870.00000000 | | 20M0F7W |
| 1 | 2 | 3870.00000000 | | 20M0F7W |
| 1 | 3 | 3930.00000000 | | 20M0F7W |
| 1 | 4 | 3930.00000000 | | 20M0F7W |
| 1 | 1 | 3950.00000000 | | 20M0F7W |
| 1 | 2 | 3950.00000000 | | 20M0F7W |
| 1 | 3 | 4010.00000000 | | 20M0F7W |
| 1 | 4 | 4010.00000000 | | 20M0F7W |
| 1 | 3 | 4090.00000000 | | 20M0F7W |
| 1 | 4 | 4090.00000000 | | 20M0F7W |
| 1 | 3 | 4170.00000000 | | 20M0F7W |
| 1 | 4 | 4170.00000000 | | 20M0F7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 5.5 MILES NW OF, ST IVES, ST. CLAIR, AL | 33.45452778, -86.33997222 | 220.100 m | | 45.100 m overall | |
| 2 | R | | 33.04316667, -86.25302778 | 320.300 m | | | |
| 3 | R | | 33.65647222, -86.36941667 | 318.500 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | 41.3000 | 169.9000 | | |
| 1 | 2 | R | | | | 41.3000 | | | |
| 1 | 3 | R | | | | 39.0000 | | | |
| 2 | 1 | T | | | V | 39.0000 | 353.1000 | | |
| 2 | 2 | R | | | | 41.3000 | | | |
| 2 | 3 | R | | | | 39.0000 | | | |
| 3 | 1 | T | | | H | 41.3000 | 169.9000 | | |
| 4 | 1 | T | | | H | 39.0000 | 353.1000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2007-02-16 | WLB578 | LICAN |
| 2006-02-02 | WLB578 | LIASS |
| 2006-01-06 | WLB578 | LITRAN |
| 2005-06-08 | WLB578 | LIAUA |
| 2005-06-07 | WLB578 | ESUAPR |
| 2005-05-02 | WLB578 | ESCAPR |
| 2005-03-11 | WLB578 | ESUAPR |
| 2004-04-20 | WLB578 | LIASS |
| 2003-02-12 | WLB578 | LIAUA |
| 2003-01-15 | WLB578 | LIAUA |
| 2003-01-14 | WLB578 | LIAUA |
| 2002-07-21 | WLB578 | LIASS |
| 2001-03-07 | WLB578 | LIAUA |
| 2001-01-23 | WLB578 | LIREN |
| 2000-11-13 | WLB578 | LETRES |
| 1999-08-13 | WLB578 | LICCNV |
| 1999-08-05 | WLB578 | COR |
| 1999-07-27 | WLB578 | COR |
| 1999-02-11 | WLB578 | LITRAN |
| 1991-04-01 | WLB578 | LIREN |
| 1986-05-26 | WLB578 | LIMOD |
| 1986-03-10 | WLB578 | LIMOD |
| 1986-01-30 | WLB578 | LIMOD |
| 1985-05-16 | WLB578 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 987891 | 2026-08-02 02:45:56 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WLB578 | ULS 987891 | 2026-08-02 02:45:56 |
| Status | C | ULS 987891 | 2026-08-02 02:45:56 |
| Service | CF | ULS 987891 | 2026-08-02 02:45:56 |
| Grant Date | 2001-01-23 | ULS 987891 | 2026-08-02 02:45:56 |
| Expiration Date | 2011-02-01 | ULS 987891 | 2026-08-02 02:45:56 |
| Cancellation Date | 2007-02-15 | ULS 987891 | 2026-08-02 02:45:56 |