Universal Licensing System
WRKI641
NTT GLOBAL DATA CENTERS AMERICAS, INC
License details
| ULS identifier | 4372299 |
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| Call sign | WRKI641 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2021-01-09 |
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| Expiration | 2031-01-09 |
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| Frequency range | 451.2875 - 457.0625 MHz (5 frequencies) |
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| Locations | 1 |
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| Representative location | ITASCA, DUPAGE, IL |
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| Coordinates | 41.9885556, -88.0136667 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:22:08 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | MO | 451.28750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 452.06250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.28750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.68750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 457.06250000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.28750000 | | 7K60FXE |
| 1 | 1 | 452.06250000 | | 7K60FXE |
| 1 | 1 | 456.28750000 | | 7K60FXE |
| 1 | 1 | 456.68750000 | | 7K60FXE |
| 1 | 1 | 457.06250000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | ITASCA, DUPAGE, IL | 41.98855556, -88.01366667 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 255 PIERCE RD, ITASCA, IL | DUPAGE | 7038620561 |
License history
| Date | File or call sign | Action |
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| 2021-10-13 | WRKI641 | LETCNS |
| 2021-01-09 | WRKI641 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 4372299 | 2026-08-02 01:22:08 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRKI641 | ULS 4372299 | 2026-08-02 01:22:08 |
| Status | A | ULS 4372299 | 2026-08-02 01:22:08 |
| Service | IG | ULS 4372299 | 2026-08-02 01:22:08 |
| Grant Date | 2021-01-09 | ULS 4372299 | 2026-08-02 01:22:08 |
| Expiration Date | 2031-01-09 | ULS 4372299 | 2026-08-02 01:22:08 |