Universal Licensing System
WPTZ256
Cook Illlinois Corporation
License details
| ULS identifier | 2376266 |
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| Call sign | WPTZ256 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2011-11-29 |
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| Expiration | 2022-01-16 |
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| Cancellation | 2022-03-19 |
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| Frequency range | 451.9875 - 456.9875 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | JOLIET, WILL, IL |
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| Coordinates | 41.5405556, -88.0355556 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:03 |
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Licensee
| Name | Cook Illlinois Corporation |
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| Applicant type | C |
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| FRN | 0004828182 |
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| Location | OAKBROOK, IL |
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| Address | 2100 CLEARWATER DRIVE, STE 250, OAKBROOK, IL, 60523 |
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| Phone | 7085609840 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 451.98750000 | | | 100.000000 | 250.000000 | |
| 3 | 1 | FB2 | 451.98750000 | | | 100.000000 | 150.000000 | |
| 2 | 1 | MO | 456.98750000 | | | 25.000000 | 25.000000 | |
| 4 | 1 | MO | 456.98750000 | | | 25.000000 | 25.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.98750000 | | 11K2F1E |
| 1 | 1 | 451.98750000 | | 11K2F3E |
| 1 | 1 | 451.98750000 | | 11K2F1D |
| 1 | 1 | 451.98750000 | | 11K2F2D |
| 3 | 1 | 451.98750000 | | 11K2F1D |
| 3 | 1 | 451.98750000 | | 11K2F1E |
| 3 | 1 | 451.98750000 | | 11K2F2D |
| 3 | 1 | 451.98750000 | | 11K2F3E |
| 2 | 1 | 456.98750000 | | 11K2F3E |
| 2 | 1 | 456.98750000 | | 11K2F1E |
| 2 | 1 | 456.98750000 | | 11K2F2D |
| 2 | 1 | 456.98750000 | | 11K2F1D |
| 4 | 1 | 456.98750000 | | 11K2F1E |
| 4 | 1 | 456.98750000 | | 11K2F3E |
| 4 | 1 | 456.98750000 | | 11K2F1D |
| 4 | 1 | 456.98750000 | | 11K2F2D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 1716 Irish Indian Trail, Joliet, WILL, IL | 41.48919444, -88.14058333 | 168.500 m | TOWER | 124.000 m structure / 128.000 m overall | N |
| 2 | T | | | | | | |
| 3 | T | 750 NORTH FOX ST, JOLIET, WILL, IL | 41.54055556, -88.03555556 | 198.000 m | TOWER | 152.000 m structure / 152.000 m overall | N |
| 4 | T | | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | | | 122.000 m | V | 8.0000 | 360.0000 | 137.000 | |
| 1 | 2 | | | | | | | | |
| 1 | 3 | | | 122.000 m | V | 8.0000 | 360.0000 | 137.000 | |
| 1 | 4 | | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 18962 AIRPORT RD, LOCKPORT, IL | WILL | 8158381012 |
License history
| Date | File or call sign | Action |
|---|
| 2022-03-19 | WPTZ256 | LIEXP |
| 2014-09-04 | WPTZ256 | LIAUA |
| 2014-09-03 | WPTZ256 | ESCAPR |
| 2011-11-29 | WPTZ256 | LIREN |
| 2011-10-24 | WPTZ256 | LETRES |
| 2008-07-03 | WPTZ256 | LIAUA |
| 2008-07-02 | WPTZ256 | ESCAPR |
| 2004-06-14 | WPTZ256 | LIMOD |
| 2004-05-04 | WPTZ256 | LIAUA |
| 2004-05-03 | WPTZ256 | ESCAPR |
| 2004-03-03 | WPTZ256 | LIAUA |
| 2004-01-07 | WPTZ256 | LIAUA |
| 2002-10-15 | WPTZ256 | LETCNS |
| 2002-01-16 | WPTZ256 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2376266 | 2026-08-02 01:14:03 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPTZ256 | ULS 2376266 | 2026-08-02 01:14:03 |
| Status | E | ULS 2376266 | 2026-08-02 01:14:03 |
| Service | IG | ULS 2376266 | 2026-08-02 01:14:03 |
| Grant Date | 2011-11-29 | ULS 2376266 | 2026-08-02 01:14:03 |
| Expiration Date | 2022-01-16 | ULS 2376266 | 2026-08-02 01:14:03 |
| Cancellation Date | 2022-03-19 | ULS 2376266 | 2026-08-02 01:14:03 |