Universal Licensing System
WLB233
MCI WorldCom Network Services, Inc. (debtor-in-possession)
License details
| ULS identifier | 987730 |
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| Call sign | WLB233 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 2001-01-23 |
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| Expiration | 2011-02-01 |
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| Cancellation | 2004-05-10 |
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| Frequency range | 3750 - 4170 MHz (12 frequencies) |
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| Locations | 3 |
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| Representative location | SELIGMAN, YAVAPAI, AZ |
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| Coordinates | 35.3508333, -112.9501667 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:46:07 |
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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 |
|---|
| 1 | 2 | FXO | 3750.00000000 | | | | | |
| 1 | 4 | FXO | 3770.00000000 | | | | | |
| 1 | 2 | FXO | 3830.00000000 | | | | | |
| 1 | 4 | FXO | 3850.00000000 | | | | | |
| 1 | 2 | FXO | 3910.00000000 | | | | | |
| 1 | 4 | FXO | 3930.00000000 | | | | | |
| 1 | 2 | FXO | 3990.00000000 | | | | | |
| 1 | 4 | FXO | 4010.00000000 | | | | | |
| 1 | 1 | FXO | 4070.00000000 | | | | | |
| 1 | 4 | FXO | 4090.00000000 | | | | | |
| 1 | 1 | FXO | 4150.00000000 | | | | | |
| 1 | 4 | FXO | 4170.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 2 | 3750.00000000 | | 20M0F7W |
| 1 | 4 | 3770.00000000 | | 20M0F7W |
| 1 | 2 | 3830.00000000 | | 20M0F7W |
| 1 | 4 | 3850.00000000 | | 20M0F7W |
| 1 | 2 | 3910.00000000 | | 20M0F7W |
| 1 | 4 | 3930.00000000 | | 20M0F7W |
| 1 | 2 | 3990.00000000 | | 20M0F7W |
| 1 | 4 | 4010.00000000 | | 20M0F7W |
| 1 | 1 | 4070.00000000 | | 20M0F7W |
| 1 | 4 | 4090.00000000 | | 20M0F7W |
| 1 | 1 | 4150.00000000 | | 20M0F7W |
| 1 | 4 | 4170.00000000 | | 20M0F7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 4 MILES NW OF, SELIGMAN, YAVAPAI, AZ | 35.35083333, -112.95016667 | 1879.700 m | TOWER | 36.600 m structure / 39.000 m overall | N |
| 2 | R | | 35.05638889, -112.71516667 | 1420.400 m | | | |
| 3 | R | | 35.40191667, -113.39686111 | 1805.600 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | ANDREW SHX10A | | V | 34.7000 | 146.7000 | | |
| 1 | 2 | R | ANDREW UMX10-459 | | | 39.0000 | | | |
| 1 | 3 | R | | | | 41.3000 | | | |
| 2 | 1 | T | | | V | 39.0000 | 278.1000 | | |
| 2 | 3 | R | | | | 41.3000 | | | |
| 4 | 1 | T | | | H | 39.0000 | 278.1000 | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 4 MI. N.W. OF, SELIGMAN, AZ | | 9726565702 |
License history
| Date | File or call sign | Action |
|---|
| 2004-05-11 | WLB233 | LICAN |
| 2003-02-12 | WLB233 | LIAUA |
| 2003-01-15 | WLB233 | LIAUA |
| 2003-01-14 | WLB233 | LIAUA |
| 2002-07-21 | WLB233 | LIASS |
| 2001-03-07 | WLB233 | LIAUA |
| 2001-01-23 | WLB233 | LIREN |
| 2000-11-13 | WLB233 | LETRES |
| 2000-06-07 | WLB233 | LIMOD |
| 1999-08-13 | WLB233 | LICCNV |
| 1999-07-27 | WLB233 | LIMOD |
| 1999-02-11 | WLB233 | LITRAN |
| 1997-12-09 | WLB233 | LIMOD |
| 1997-06-11 | WLB233 | LIMOD |
| 1995-04-13 | WLB233 | LIMOD |
| 1993-08-05 | WLB233 | LIMOD |
| 1992-03-19 | WLB233 | LIMOD |
| 1991-04-01 | WLB233 | LIREN |
| 1988-07-28 | WLB233 | LIMOD |
| 1986-10-23 | WLB233 | LIMOD |
| 1984-12-19 | WLB233 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 987730 | 2026-08-02 02:46:07 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WLB233 | ULS 987730 | 2026-08-02 02:46:07 |
| Status | C | ULS 987730 | 2026-08-02 02:46:07 |
| Service | CF | ULS 987730 | 2026-08-02 02:46:07 |
| Grant Date | 2001-01-23 | ULS 987730 | 2026-08-02 02:46:07 |
| Expiration Date | 2011-02-01 | ULS 987730 | 2026-08-02 02:46:07 |
| Cancellation Date | 2004-05-10 | ULS 987730 | 2026-08-02 02:46:07 |