Universal Licensing System
WLK491
MCI WORLDCOM NETWORK SERVICES INC
License details
| ULS identifier | 993191 |
|---|
| Call sign | WLK491 |
|---|
| Radio service | CF |
|---|
| Status | C |
|---|
| Grant date | 1991-04-01 |
|---|
| Expiration | 2001-02-01 |
|---|
| Cancellation | 1996-08-20 |
|---|
| Frequency range | 11365 - 11525 MHz (2 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | CEDAR RAPIDS, LINN, IA |
|---|
| Coordinates | 41.9802778, -91.6646111 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-02 02:47:47 |
|---|
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 | 1 | FXO | 11365.00000000 | | | | | |
| 1 | 1 | FXO | 11525.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 11365.00000000 | | 40M0F7W |
| 1 | 1 | 11525.00000000 | | 40M0F7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 500 2ND AVE, CEDAR RAPIDS, LINN, IA | 41.98027778, -91.66461111 | 225.200 m | | 51.200 m overall | |
| 2 | R | | 42.03358333, -91.64905556 | 259.100 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | 40.4000 | 12.3000 | | |
| 1 | 2 | R | | | | 40.4000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 1999-08-14 | WLK491 | LICCNV |
| 1996-08-20 | WLK491 | LICAN |
| 1991-04-01 | WLK491 | LIREN |
| 1988-08-11 | WLK491 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 993191 | 2026-08-02 02:47:47 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WLK491 | ULS 993191 | 2026-08-02 02:47:47 |
| Status | C | ULS 993191 | 2026-08-02 02:47:47 |
| Service | CF | ULS 993191 | 2026-08-02 02:47:47 |
| Grant Date | 1991-04-01 | ULS 993191 | 2026-08-02 02:47:47 |
| Expiration Date | 2001-02-01 | ULS 993191 | 2026-08-02 02:47:47 |
| Cancellation Date | 1996-08-20 | ULS 993191 | 2026-08-02 02:47:47 |