Universal Licensing System
WLC252
MCI WORLDCOM NETWORK SERVICES INC
License details
| ULS identifier | 988248 |
|---|
| Call sign | WLC252 |
|---|
| Radio service | CF |
|---|
| Status | C |
|---|
| Grant date | 1991-04-01 |
|---|
| Expiration | 2001-02-01 |
|---|
| Cancellation | 2000-06-29 |
|---|
| Frequency range | 3750 - 4170 MHz (12 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | ELIZABETH, ELBERT, CO |
|---|
| Coordinates | 39.4352500, -104.6230000 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-09-14 16:59:04 |
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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 | 2270 LAKESIDE DR, RICHARDSON, TX, 75082 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 3750.00000000 | | | | | |
| 1 | 2 | FXO | 3750.00000000 | | | | | |
| 1 | 3 | FXO | 3770.00000000 | | | | | |
| 1 | 4 | FXO | 3770.00000000 | | | | | |
| 1 | 1 | FXO | 3830.00000000 | | | | | |
| 1 | 2 | FXO | 3830.00000000 | | | | | |
| 1 | 3 | FXO | 3850.00000000 | | | | | |
| 1 | 4 | FXO | 3850.00000000 | | | | | |
| 1 | 1 | FXO | 3910.00000000 | | | | | |
| 1 | 2 | FXO | 3910.00000000 | | | | | |
| 1 | 3 | FXO | 3930.00000000 | | | | | |
| 1 | 4 | FXO | 3930.00000000 | | | | | |
| 1 | 1 | FXO | 3990.00000000 | | | | | |
| 1 | 2 | FXO | 3990.00000000 | | | | | |
| 1 | 3 | FXO | 4010.00000000 | | | | | |
| 1 | 4 | FXO | 4010.00000000 | | | | | |
| 1 | 1 | FXO | 4070.00000000 | | | | | |
| 1 | 2 | FXO | 4070.00000000 | | | | | |
| 1 | 3 | FXO | 4090.00000000 | | | | | |
| 1 | 4 | FXO | 4090.00000000 | | | | | |
| 1 | 1 | FXO | 4150.00000000 | | | | | |
| 1 | 2 | FXO | 4150.00000000 | | | | | |
| 1 | 3 | FXO | 4170.00000000 | | | | | |
| 1 | 4 | FXO | 4170.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 3750.00000000 | | 20M0A7W |
| 1 | 2 | 3750.00000000 | | 20M0A7W |
| 1 | 3 | 3770.00000000 | | 20M0A7W |
| 1 | 4 | 3770.00000000 | | 20M0A7W |
| 1 | 1 | 3830.00000000 | | 20M0A7W |
| 1 | 2 | 3830.00000000 | | 20M0A7W |
| 1 | 3 | 3850.00000000 | | 20M0A7W |
| 1 | 4 | 3850.00000000 | | 20M0A7W |
| 1 | 1 | 3910.00000000 | | 20M0A7W |
| 1 | 2 | 3910.00000000 | | 20M0A7W |
| 1 | 3 | 3930.00000000 | | 20M0A7W |
| 1 | 4 | 3930.00000000 | | 20M0A7W |
| 1 | 1 | 3990.00000000 | | 20M0A7W |
| 1 | 2 | 3990.00000000 | | 20M0A7W |
| 1 | 3 | 4010.00000000 | | 20M0A7W |
| 1 | 4 | 4010.00000000 | | 20M0A7W |
| 1 | 1 | 4070.00000000 | | 20M0A7W |
| 1 | 2 | 4070.00000000 | | 20M0A7W |
| 1 | 3 | 4090.00000000 | | 20M0A7W |
| 1 | 4 | 4090.00000000 | | 20M0A7W |
| 1 | 1 | 4150.00000000 | | 20M0A7W |
| 1 | 2 | 4150.00000000 | | 20M0A7W |
| 1 | 3 | 4170.00000000 | | 20M0A7W |
| 1 | 4 | 4170.00000000 | | 20M0A7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 5 MI NNW OF, ELIZABETH, ELBERT, CO | 39.43525000, -104.62300000 | 1984.200 m | | 93.900 m overall | |
| 2 | R | | 39.08525000, -104.52550000 | 2240.300 m | | | |
| 3 | R | | 39.72636111, -104.70716667 | 1699.900 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | H | 39.0000 | 167.8000 | | |
| 1 | 2 | R | | | | 39.0000 | | | |
| 1 | 3 | R | | | | 39.8000 | | | |
| 2 | 1 | T | | | H | 39.8000 | 347.4000 | | |
| 2 | 2 | R | | | | 39.0000 | | | |
| 2 | 3 | R | | | | 39.8000 | | | |
| 3 | 1 | T | | | V | 39.0000 | 167.8000 | | |
| 4 | 1 | T | | | V | 39.8000 | 347.4000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2000-06-30 | WLC252 | LICAN |
| 1999-08-13 | WLC252 | LICCNV |
| 1999-02-11 | WLC252 | LITRAN |
| 1991-04-01 | WLC252 | LIREN |
| 1988-08-11 | WLC252 | LIMOD |
| 1987-03-26 | WLC252 | LIMOD |
| 1985-11-05 | WLC252 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 988248 | 2026-08-31 20:51:05 | Source Primary |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Applicant Name | MCI WORLDCOM NETWORK SERVICES INC | ULS 988248 | 2026-08-31 20:59:03 |
| Call Sign | WLC252 | ULS 988248 | 2026-08-31 20:59:03 |
| Cancellation Date | 2000-06-29 | ULS 988248 | 2026-08-31 20:59:03 |
| Description | 9713940 | ULS 988248 | 2026-08-31 20:59:03 |
| Expiration Date | 2001-02-01 | ULS 988248 | 2026-08-31 20:59:03 |
| Filed Date | 1991-04-01 | ULS 988248 | 2026-08-31 20:59:03 |
| Grant Date | 1991-04-01 | ULS 988248 | 2026-08-31 20:59:03 |
| Service | CF | ULS 988248 | 2026-08-31 20:59:03 |
| Source Archive | l_micro.zip | ULS 988248 | 2026-08-31 20:59:03 |
| Status | C | ULS 988248 | 2026-08-31 20:59:03 |