Universal Licensing System
WLR668
MCI WorldCom Network Services, Inc.
License details
| ULS identifier | 997725 |
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| Call sign | WLR668 |
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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 - 10895 MHz (6 frequencies) |
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| Locations | 1 |
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| Coordinates | 38.9807222, -123.7069444 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-09-14 16:58:41 |
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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 | 1 | FXO | 6004.50000000 | | | | | |
| 1 | 1 | FXO | 6063.80000000 | | | | | |
| 1 | 2 | FXO | 10735.00000000 | | | | | |
| 1 | 2 | FXO | 10815.00000000 | | | | | |
| 1 | 2 | FXO | 10895.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 5945.20000000 | | 30M0A7W |
| 1 | 1 | 6004.50000000 | | 30M0A7W |
| 1 | 1 | 6063.80000000 | | 30M0A7W |
| 1 | 2 | 10735.00000000 | | 40M0A7W |
| 1 | 2 | 10815.00000000 | | 40M0A7W |
| 1 | 2 | 10895.00000000 | | 40M0A7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 3.5 MI SE OF, PT ARENA, MENDOCINO, CA | 38.89822222, -123.63166667 | 377.000 m | | 45.100 m overall | |
| 2 | R | | 38.57766667, -123.15944444 | 707.700 m | | | |
| 3 | R | | 38.98072222, -123.70694444 | 10.100 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | H | 44.8000 | 130.8000 | | |
| 1 | 2 | R | | | | 44.8000 | | | |
| 1 | 3 | R | | | | 46.5000 | | | |
| 2 | 1 | T | | | V | 46.5000 | 324.6000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2004-08-24 | WLR668 | LICAN |
| 2004-04-20 | WLR668 | LIASS |
| 2003-02-12 | WLR668 | LIAUA |
| 2003-01-15 | WLR668 | LIAUA |
| 2003-01-14 | WLR668 | LIAUA |
| 2002-07-21 | WLR668 | LIASS |
| 2001-03-07 | WLR668 | LIAUA |
| 2001-02-13 | WLR668 | LIREN |
| 2000-11-13 | WLR668 | LETRES |
| 1999-08-14 | WLR668 | LICCNV |
| 1999-02-11 | WLR668 | LITRAN |
| 1997-12-23 | WLR668 | COR |
| 1997-05-23 | WLR668 | COR |
| 1997-05-21 | WLR668 | COR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 997725 | 2026-08-31 20:51:05 | Source Primary |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Applicant Name | MCI WorldCom Network Services, Inc. | ULS 997725 | 2026-08-31 20:58:56 |
| Call Sign | WLR668 | ULS 997725 | 2026-08-31 20:58:56 |
| Cancellation Date | 2004-08-23 | ULS 997725 | 2026-08-31 20:58:56 |
| Contact Name | 9727296406 | ULS 997725 | 2026-08-31 20:58:56 |
| Description | 0000314444 | ULS 997725 | 2026-08-31 20:58:56 |
| Expiration Date | 2011-02-01 | ULS 997725 | 2026-08-31 20:58:56 |
| Filed Date | 2001-02-13 | ULS 997725 | 2026-08-31 20:58:56 |
| Grant Date | 2001-02-13 | ULS 997725 | 2026-08-31 20:58:56 |
| Service | CF | ULS 997725 | 2026-08-31 20:58:56 |
| Source Archive | l_micro.zip | ULS 997725 | 2026-08-31 20:58:56 |
| Status | C | ULS 997725 | 2026-08-31 20:58:56 |