Universal Licensing System
WLT451
MCI WORLDCOM Network Services, Inc.
License details
| ULS identifier | 998268 |
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| Call sign | WLT451 |
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| Radio service | CF |
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| Status | E |
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| Grant date | 1994-12-12 |
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| Expiration | 2001-02-01 |
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| Cancellation | 2001-05-06 |
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| Frequency range | 6123.1 MHz |
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| Locations | 2 |
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| Representative location | SAN LUIS OBISPO, CA |
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| Coordinates | 35.2827500, -120.6648889 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:45:12 |
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Licensee
| Name | MCI WORLDCOM Network Services, Inc. |
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| Applicant type | C |
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| Location | WASHINGTON, DC |
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| Address | 1801 PENNSYLVANIA AVENUE, N.W., WASHINGTON, DC, 20006 |
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| Phone | 2028873087 |
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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 | 6123.10000000 | | | | | |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | SAN LUIS OBISPO, CA | 35.28275000, -120.66488889 | 73.200 m | | 15.200 m overall | |
| 2 | R | | 35.39469444, -120.70794444 | 835.200 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 | | 342.5000 | | |
| 1 | 2 | R | | | | | | | |
License history
| Date | File or call sign | Action |
|---|
| 2001-05-06 | WLT451 | LIEXP |
| 2000-11-13 | WLT451 | LETRES |
| 2000-02-26 | WLT451 | LIASS |
| 1999-08-14 | WLT451 | LICCNV |
| 1999-07-27 | WLT451 | COR |
| 1998-01-29 | WLT451 | LIASS |
| 1994-12-12 | WLT451 | LIASS |
| 1993-06-28 | WLT451 | LITRAN |
| 1993-03-13 | WLT451 | LITRAN |
| 1991-09-06 | WLT451 | LITRAN |
| 1991-04-24 | WLT451 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 998268 | 2026-08-02 02:45:12 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WLT451 | ULS 998268 | 2026-08-02 02:45:12 |
| Status | E | ULS 998268 | 2026-08-02 02:45:12 |
| Service | CF | ULS 998268 | 2026-08-02 02:45:12 |
| Grant Date | 1994-12-12 | ULS 998268 | 2026-08-02 02:45:12 |
| Expiration Date | 2001-02-01 | ULS 998268 | 2026-08-02 02:45:12 |
| Cancellation Date | 2001-05-06 | ULS 998268 | 2026-08-02 02:45:12 |