Universal Licensing System
WLB431
MCI Communications Services, Inc.
License details
| ULS identifier | 987880 |
|---|
| Call sign | WLB431 |
|---|
| Radio service | CF |
|---|
| Status | C |
|---|
| Grant date | 2001-01-23 |
|---|
| Expiration | 2011-02-01 |
|---|
| Cancellation | 2008-02-25 |
|---|
| Frequency range | 3730 - 4150 MHz (12 frequencies) |
|---|
| Locations | 1 |
|---|
| Representative location | PACOLET MILLS, UNION, SC |
|---|
| Coordinates | 34.8820556, -81.7420278 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-02 02:46:00 |
|---|
Licensee
| Name | MCI Communications Services, Inc. |
|---|
| Applicant type | C |
|---|
| Location | Richardson, TX |
|---|
| Address | 2400 N. Glenville Drive, Dept/Loc 63378/107, Richardson, TX, 75082 |
|---|
| 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 | 3730.00000000 | | | | | |
| 1 | 2 | FXO | 3730.00000000 | | | | | |
| 1 | 3 | FXO | 3750.00000000 | | | | | |
| 1 | 4 | FXO | 3750.00000000 | | | | | |
| 1 | 1 | FXO | 3810.00000000 | | | | | |
| 1 | 2 | FXO | 3810.00000000 | | | | | |
| 1 | 3 | FXO | 3830.00000000 | | | | | |
| 1 | 4 | FXO | 3830.00000000 | | | | | |
| 1 | 1 | FXO | 3890.00000000 | | | | | |
| 1 | 2 | FXO | 3890.00000000 | | | | | |
| 1 | 3 | FXO | 3910.00000000 | | | | | |
| 1 | 4 | FXO | 3910.00000000 | | | | | |
| 1 | 1 | FXO | 3970.00000000 | | | | | |
| 1 | 2 | FXO | 3970.00000000 | | | | | |
| 1 | 3 | FXO | 3990.00000000 | | | | | |
| 1 | 4 | FXO | 3990.00000000 | | | | | |
| 1 | 1 | FXO | 4050.00000000 | | | | | |
| 1 | 2 | FXO | 4050.00000000 | | | | | |
| 1 | 3 | FXO | 4070.00000000 | | | | | |
| 1 | 4 | FXO | 4070.00000000 | | | | | |
| 1 | 1 | FXO | 4130.00000000 | | | | | |
| 1 | 2 | FXO | 4130.00000000 | | | | | |
| 1 | 3 | FXO | 4150.00000000 | | | | | |
| 1 | 4 | FXO | 4150.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 3730.00000000 | | 20M0F7W |
| 1 | 2 | 3730.00000000 | | 20M0F7W |
| 1 | 3 | 3750.00000000 | | 20M0F7W |
| 1 | 4 | 3750.00000000 | | 20M0F7W |
| 1 | 1 | 3810.00000000 | | 20M0F7W |
| 1 | 2 | 3810.00000000 | | 20M0F7W |
| 1 | 3 | 3830.00000000 | | 20M0F7W |
| 1 | 4 | 3830.00000000 | | 20M0F7W |
| 1 | 1 | 3890.00000000 | | 20M0F7W |
| 1 | 2 | 3890.00000000 | | 20M0F7W |
| 1 | 3 | 3910.00000000 | | 20M0F7W |
| 1 | 4 | 3910.00000000 | | 20M0F7W |
| 1 | 1 | 3970.00000000 | | 20M0F7W |
| 1 | 2 | 3970.00000000 | | 20M0F7W |
| 1 | 3 | 3990.00000000 | | 20M0F7W |
| 1 | 4 | 3990.00000000 | | 20M0F7W |
| 1 | 1 | 4050.00000000 | | 20M0F7W |
| 1 | 2 | 4050.00000000 | | 20M0F7W |
| 1 | 3 | 4070.00000000 | | 20M0F7W |
| 1 | 4 | 4070.00000000 | | 20M0F7W |
| 1 | 1 | 4130.00000000 | | 20M0F7W |
| 1 | 2 | 4130.00000000 | | 20M0F7W |
| 1 | 3 | 4150.00000000 | | 20M0F7W |
| 1 | 4 | 4150.00000000 | | 20M0F7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 1.7 MI SE OF, PACOLET MILLS, UNION, SC | 34.88205556, -81.74202778 | 221.900 m | | 71.000 m overall | |
| 2 | R | | 35.13677778, -81.50202778 | 345.900 m | | | |
| 3 | R | | 34.92288889, -82.11730556 | 267.900 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | 39.8000 | 37.7000 | | |
| 1 | 2 | R | | | | 39.8000 | | | |
| 1 | 3 | R | | | | 39.9000 | | | |
| 2 | 1 | T | | | V | 39.9000 | 277.6000 | | |
| 2 | 2 | R | | | | 39.8000 | | | |
| 2 | 3 | R | | | | 39.9000 | | | |
| 3 | 1 | T | | | H | 39.8000 | 37.7000 | | |
| 4 | 1 | T | | | H | 39.9000 | 277.6000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2008-02-26 | WLB431 | LICAN |
| 2006-07-05 | WLB431 | LIMOD |
| 2006-05-24 | WLB431 | ESUAPR |
| 2006-02-02 | WLB431 | LIASS |
| 2006-01-06 | WLB431 | LITRAN |
| 2005-06-08 | WLB431 | LIAUA |
| 2005-06-07 | WLB431 | ESUAPR |
| 2005-05-02 | WLB431 | ESCAPR |
| 2005-03-11 | WLB431 | ESUAPR |
| 2004-04-20 | WLB431 | LIASS |
| 2003-02-12 | WLB431 | LIAUA |
| 2003-01-15 | WLB431 | LIAUA |
| 2003-01-14 | WLB431 | LIAUA |
| 2002-07-21 | WLB431 | LIASS |
| 2001-03-07 | WLB431 | LIAUA |
| 2001-01-23 | WLB431 | LIREN |
| 2000-11-13 | WLB431 | LETRES |
| 1999-08-13 | WLB431 | LICCNV |
| 1999-03-29 | WLB431 | COR |
| 1999-02-11 | WLB431 | LITRAN |
| 1991-04-01 | WLB431 | LIREN |
| 1989-01-24 | WLB431 | LIMOD |
| 1988-07-28 | WLB431 | LIMOD |
| 1986-05-08 | WLB431 | LIMOD |
| 1986-02-06 | WLB431 | LIMOD |
| 1985-06-26 | WLB431 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 987880 | 2026-08-02 02:46:00 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WLB431 | ULS 987880 | 2026-08-02 02:46:00 |
| Status | C | ULS 987880 | 2026-08-02 02:46:00 |
| Service | CF | ULS 987880 | 2026-08-02 02:46:00 |
| Grant Date | 2001-01-23 | ULS 987880 | 2026-08-02 02:46:00 |
| Expiration Date | 2011-02-01 | ULS 987880 | 2026-08-02 02:46:00 |
| Cancellation Date | 2008-02-25 | ULS 987880 | 2026-08-02 02:46:00 |