Universal Licensing System
WPRK225
SILVER SPRING CORP
License details
| ULS identifier | 1831916 |
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| Call sign | WPRK225 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2015-11-12 |
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| Expiration | 2025-10-23 |
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| Cancellation | 2025-12-27 |
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| Frequency range | 461.4 - 467.5 MHz (4 frequencies) |
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| Locations | 2 |
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| Representative location | SILVER SPRING, MONTGOMERY, MD |
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| Coordinates | 38.9937222, -77.0260833 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:26:04 |
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Licensee
| Name | SILVER SPRING CORP |
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| Applicant type | G |
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| FRN | 0013629332 |
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| Location | SILVER SPRING, MD |
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| Address | 8435 GEORGIA AVE, SILVER SPRING, MD, 20910 |
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| Phone | 3015655864 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 461.40000000 | | | 40.000000 | 40.000000 | |
| 2 | 1 | MO | 461.40000000 | | | 25.000000 | 25.000000 | |
| 1 | 1 | FB2 | 462.50000000 | | | 40.000000 | 40.000000 | |
| 2 | 1 | MO | 462.50000000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | MO | 466.40000000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | MO | 467.50000000 | | | 25.000000 | 25.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 461.40000000 | | 7K60FXE |
| 1 | 1 | 461.40000000 | | 7K60FXD |
| 2 | 1 | 461.40000000 | | 7K60FXD |
| 2 | 1 | 461.40000000 | | 7K60FXE |
| 1 | 1 | 462.50000000 | | 7K60FXD |
| 1 | 1 | 462.50000000 | | 7K60FXE |
| 2 | 1 | 462.50000000 | | 7K60FXD |
| 2 | 1 | 462.50000000 | | 7K60FXE |
| 2 | 1 | 466.40000000 | | 7K60FXD |
| 2 | 1 | 466.40000000 | | 7K60FXE |
| 2 | 1 | 467.50000000 | | 7K60FXD |
| 2 | 1 | 467.50000000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 8435 GEORGIA AVE, SILVER SPRING, MONTGOMERY, MD | 38.99372222, -77.02608333 | 106.000 m | B | 27.000 m structure / 32.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 32.000 m | | | | 67.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 8435 GEORGIA AVE, SILVER SPRING, MD | MONTGOMERY | 3015657300 |
License history
| Date | File or call sign | Action |
|---|
| 2025-12-27 | WPRK225 | LIEXP |
| 2025-07-29 | WPRK225 | LETRES |
| 2015-11-12 | WPRK225 | LIREN |
| 2015-11-10 | WPRK225 | LIMOD |
| 2015-10-23 | WPRK225 | LIMOD |
| 2015-10-22 | WPRK225 | ESCAPR |
| 2015-07-27 | WPRK225 | LETRES |
| 2012-08-30 | WPRK225 | LIMOD |
| 2005-08-01 | WPRK225 | LTSAPR |
| 2005-07-30 | WPRK225 | LIREN |
| 2005-06-17 | WPRK225 | LTSFRN |
| 2001-12-28 | WPRK225 | AUDOPR |
| 2001-01-11 | WPRK225 | AUTHPR |
| 2001-01-10 | WPRK225 | COR |
| 2001-01-10 | WPRK225 | INTDUP |
| 2000-11-23 | WPRK225 | LICCNV |
| 2000-10-24 | WPRK225 | AUTHPR |
| 2000-10-23 | WPRK225 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1831916 | 2026-08-02 01:26:04 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPRK225 | ULS 1831916 | 2026-08-02 01:26:04 |
| Status | E | ULS 1831916 | 2026-08-02 01:26:04 |
| Service | IG | ULS 1831916 | 2026-08-02 01:26:04 |
| Grant Date | 2015-11-12 | ULS 1831916 | 2026-08-02 01:26:04 |
| Expiration Date | 2025-10-23 | ULS 1831916 | 2026-08-02 01:26:04 |
| Cancellation Date | 2025-12-27 | ULS 1831916 | 2026-08-02 01:26:04 |