Universal Licensing System
WLB642
MCI WORLDCOM NETWORK SERVICES INC
License details
| ULS identifier | 987948 |
|---|
| Call sign | WLB642 |
|---|
| Radio service | CF |
|---|
| Status | C |
|---|
| Grant date | 1991-04-01 |
|---|
| Expiration | 2001-02-01 |
|---|
| Cancellation | 1997-10-29 |
|---|
| Frequency range | 5945.2 - 6404.801 MHz (28 frequencies) |
|---|
| Locations | 1 |
|---|
| Representative location | ELGIN, KANE, IL |
|---|
| Coordinates | 42.0205556, -88.3828333 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-02 02:48:12 |
|---|
Licensee
| Name | MCI WORLDCOM NETWORK SERVICES INC |
|---|
| Applicant type | C |
|---|
| Location | RICHARDSON, TX |
|---|
| 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 | 2 | FXO | 5945.20000000 | | | | | |
| 1 | 3 | FXO | 5974.80100000 | | | | | |
| 1 | 3 | FXO | 5974.85000000 | | | | | |
| 1 | 2 | FXO | 6004.50000000 | | | | | |
| 1 | 3 | FXO | 6034.15000000 | | | | | |
| 1 | 3 | FXO | 6034.20100000 | | | | | |
| 1 | 2 | FXO | 6063.80000000 | | | | | |
| 1 | 2 | FXO | 6063.80100000 | | | | | |
| 1 | 3 | FXO | 6093.45000000 | | | | | |
| 1 | 3 | FXO | 6093.50100000 | | | | | |
| 1 | 2 | FXO | 6123.10000000 | | | | | |
| 1 | 2 | FXO | 6123.10100000 | | | | | |
| 1 | 3 | FXO | 6152.75000000 | | | | | |
| 1 | 3 | FXO | 6152.80100000 | | | | | |
| 1 | 1 | FXO | 6197.24000000 | | | | | |
| 1 | 4 | FXO | 6226.89000000 | | | | | |
| 1 | 4 | FXO | 6226.90100000 | | | | | |
| 1 | 1 | FXO | 6256.54000000 | | | | | |
| 1 | 4 | FXO | 6286.19000000 | | | | | |
| 1 | 4 | FXO | 6286.20100000 | | | | | |
| 1 | 1 | FXO | 6315.84000000 | | | | | |
| 1 | 1 | FXO | 6315.90100000 | | | | | |
| 1 | 4 | FXO | 6345.49000000 | | | | | |
| 1 | 4 | FXO | 6345.50100000 | | | | | |
| 1 | 1 | FXO | 6375.14000000 | | | | | |
| 1 | 1 | FXO | 6375.20100000 | | | | | |
| 1 | 4 | FXO | 6404.79000000 | | | | | |
| 1 | 4 | FXO | 6404.80100000 | | | | | |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 2.5 MI E OF, ELGIN, KANE, IL | 42.02055556, -88.38283333 | 271.900 m | | 116.700 m overall | |
| 2 | R | | 41.87891667, -88.80869444 | 262.700 m | | | |
| 3 | R | | 41.77280556, -87.99727778 | 230.100 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | | 130.6000 | | |
| 1 | 2 | R | | | | | | | |
| 1 | 3 | R | | | | | | | |
| 2 | 1 | T | | | H | | 246.1000 | | |
| 2 | 2 | R | | | | | | | |
| 2 | 3 | R | | | | | | | |
| 3 | 1 | T | | | V | | 246.1000 | | |
| 4 | 1 | T | | | H | | 130.6000 | | |
License history
| Date | File or call sign | Action |
|---|
| 1999-08-13 | WLB642 | LICCNV |
| 1997-10-29 | WLB642 | LICAN |
| 1991-04-01 | WLB642 | LIREN |
| 1985-09-26 | WLB642 | LIMOD |
| 1985-01-31 | WLB642 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 987948 | 2026-08-02 02:48:12 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WLB642 | ULS 987948 | 2026-08-02 02:48:12 |
| Status | C | ULS 987948 | 2026-08-02 02:48:12 |
| Service | CF | ULS 987948 | 2026-08-02 02:48:12 |
| Grant Date | 1991-04-01 | ULS 987948 | 2026-08-02 02:48:12 |
| Expiration Date | 2001-02-01 | ULS 987948 | 2026-08-02 02:48:12 |
| Cancellation Date | 1997-10-29 | ULS 987948 | 2026-08-02 02:48:12 |