Universal Licensing System
WLB590
MCI WorldCom Network Services, Inc.
License details
| ULS identifier | 987903 |
|---|
| Call sign | WLB590 |
|---|
| Radio service | CF |
|---|
| Status | C |
|---|
| Grant date | 2001-01-23 |
|---|
| Expiration | 2011-02-01 |
|---|
| Cancellation | 2005-04-12 |
|---|
| Frequency range | 3770 - 4170 MHz (6 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | WILLIAMSTON, ANDERSON, SC |
|---|
| Coordinates | 34.6615000, -82.6131667 |
|---|
| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:45:09 |
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Licensee
| Name | MCI WorldCom Network Services, Inc. |
|---|
| Applicant type | C |
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| Location | Richardson, TX |
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| Address | 2400 North Glenville, 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 | 1 | FXO | 4030.00000000 | | | | | |
| 1 | 2 | FXO | 4030.00000000 | | | | | |
| 1 | 3 | FXO | 4090.00000000 | | | | | |
| 1 | 4 | FXO | 4090.00000000 | | | | | |
| 1 | 1 | FXO | 4110.00000000 | | | | | |
| 1 | 2 | FXO | 4110.00000000 | | | | | |
| 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 | 1 | 4030.00000000 | | 20M0F7W |
| 1 | 2 | 4030.00000000 | | 20M0F7W |
| 1 | 3 | 4090.00000000 | | 20M0F7W |
| 1 | 4 | 4090.00000000 | | 20M0F7W |
| 1 | 1 | 4110.00000000 | | 20M0F7W |
| 1 | 2 | 4110.00000000 | | 20M0F7W |
| 1 | 3 | 4170.00000000 | | 20M0F7W |
| 1 | 4 | 4170.00000000 | | 20M0F7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 7.5 MILES NW OF, WILLIAMSTON, ANDERSON, SC | 34.66150000, -82.61316667 | 277.700 m | | 71.000 m overall | |
| 2 | R | | 34.67094444, -82.22705556 | 256.900 m | | | |
| 3 | R | | 34.58369444, -82.98930556 | 277.700 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | 39.8000 | 88.2000 | | |
| 1 | 2 | R | | | | 39.9000 | | | |
| 1 | 3 | R | | | | 39.8000 | | | |
| 2 | 1 | T | | | V | 39.8000 | 256.1000 | | |
| 2 | 2 | R | | | | 39.9000 | | | |
| 2 | 3 | R | | | | 39.8000 | | | |
| 3 | 1 | T | | | H | 39.8000 | 88.2000 | | |
| 4 | 1 | T | | | H | 39.8000 | 256.1000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2005-04-13 | WLB590 | LICAN |
| 2005-03-11 | WLB590 | ESUAPR |
| 2004-04-20 | WLB590 | LIASS |
| 2003-02-12 | WLB590 | LIAUA |
| 2003-01-15 | WLB590 | LIAUA |
| 2003-01-14 | WLB590 | LIAUA |
| 2002-07-21 | WLB590 | LIASS |
| 2001-03-07 | WLB590 | LIAUA |
| 2001-01-23 | WLB590 | LIREN |
| 2000-11-13 | WLB590 | LETRES |
| 1999-08-13 | WLB590 | LICCNV |
| 1999-02-11 | WLB590 | LITRAN |
| 1991-04-01 | WLB590 | LIREN |
| 1988-07-28 | WLB590 | LIMOD |
| 1986-05-08 | WLB590 | LIMOD |
| 1986-02-06 | WLB590 | LIMOD |
| 1985-09-26 | WLB590 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 987903 | 2026-08-02 02:45:09 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WLB590 | ULS 987903 | 2026-08-02 02:45:09 |
| Status | C | ULS 987903 | 2026-08-02 02:45:09 |
| Service | CF | ULS 987903 | 2026-08-02 02:45:09 |
| Grant Date | 2001-01-23 | ULS 987903 | 2026-08-02 02:45:09 |
| Expiration Date | 2011-02-01 | ULS 987903 | 2026-08-02 02:45:09 |
| Cancellation Date | 2005-04-12 | ULS 987903 | 2026-08-02 02:45:09 |