Universal Licensing System
WLR660
MCI WorldCom Network Services, Inc.
License details
| ULS identifier | 997717 |
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| Call sign | WLR660 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 2001-02-13 |
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| Expiration | 2011-02-01 |
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| Cancellation | 2004-08-23 |
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| Frequency range | 5945.2 - 6063.8 MHz (3 frequencies) |
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| Locations | 3 |
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| Representative location | MT ST HELENA, SONOMA, CA |
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| Coordinates | 38.6676667, -122.6274722 |
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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 | 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 | 5945.20000000 | | | | | |
| 1 | 2 | FXO | 5945.20000000 | | | | | |
| 1 | 1 | FXO | 6004.50000000 | | | | | |
| 1 | 2 | FXO | 6004.50000000 | | | | | |
| 1 | 1 | FXO | 6063.80000000 | | | | | |
| 1 | 2 | FXO | 6063.80000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 5945.20000000 | | 30M0A7W |
| 1 | 2 | 5945.20000000 | | 30M0A7W |
| 1 | 1 | 6004.50000000 | | 30M0A7W |
| 1 | 2 | 6004.50000000 | | 30M0A7W |
| 1 | 1 | 6063.80000000 | | 30M0A7W |
| 1 | 2 | 6063.80000000 | | 30M0A7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | WITHIN CITY LIMITS, MT ST HELENA, SONOMA, CA | 38.66766667, -122.62747222 | 1286.300 m | | 26.800 m overall | |
| 2 | R | | 38.78850000, -122.12191667 | 549.900 m | | | |
| 3 | R | | 38.57766667, -123.15944444 | 707.700 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | H | 44.8000 | 72.9000 | | |
| 1 | 2 | R | | | | 44.8000 | | | |
| 1 | 3 | R | | | | 44.8000 | | | |
| 2 | 1 | T | | | V | 44.8000 | 258.0000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2004-08-24 | WLR660 | LICAN |
| 2004-04-20 | WLR660 | LIASS |
| 2003-02-12 | WLR660 | LIAUA |
| 2003-01-15 | WLR660 | LIAUA |
| 2003-01-14 | WLR660 | LIAUA |
| 2002-07-21 | WLR660 | LIASS |
| 2001-03-07 | WLR660 | LIAUA |
| 2001-02-13 | WLR660 | LIREN |
| 2000-11-13 | WLR660 | LETRES |
| 1999-08-14 | WLR660 | LICCNV |
| 1999-02-11 | WLR660 | LITRAN |
| 1997-12-23 | WLR660 | COR |
| 1997-05-23 | WLR660 | COR |
| 1997-05-21 | WLR660 | COR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 997717 | 2026-08-02 02:45:12 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WLR660 | ULS 997717 | 2026-08-02 02:45:12 |
| Status | C | ULS 997717 | 2026-08-02 02:45:12 |
| Service | CF | ULS 997717 | 2026-08-02 02:45:12 |
| Grant Date | 2001-02-13 | ULS 997717 | 2026-08-02 02:45:12 |
| Expiration Date | 2011-02-01 | ULS 997717 | 2026-08-02 02:45:12 |
| Cancellation Date | 2004-08-23 | ULS 997717 | 2026-08-02 02:45:12 |