Universal Licensing System
KNNJ678
MCI Communications Services, Inc.
License details
| ULS identifier | 1877721 |
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| Call sign | KNNJ678 |
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| Radio service | IG |
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| Status | C |
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| Grant date | 2011-01-19 |
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| Expiration | 2021-02-23 |
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| Cancellation | 2012-05-08 |
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| Frequency range | 462.525 - 467.525 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | BOSTON, SUFFOLK, MA |
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| Coordinates | 42.3473333, -71.0820000 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-16 06:48:23 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2C | 462.52500000 | | | 85.000000 | 142.000000 | |
| 2 | 1 | MO | 462.52500000 | | | 40.000000 | | |
| 2 | 1 | MO | 467.52500000 | | | 40.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 462.52500000 | | 20K0F3E |
| 2 | 1 | 462.52500000 | | 20K0F3E |
| 2 | 1 | 467.52500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | PRUDENTIAL CENTER 800 BOYLSTON ST, BOSTON, SUFFOLK, MA | 42.34733333, -71.08200000 | 5.000 m | B | 225.000 m structure / 227.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 226.000 m | | | | 210.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 7000 WESTERN PKY, CARY, NC | | 9196774600 |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1877721 | 2026-08-16 06:48:23 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNNJ678 | ULS 1877721 | 2026-08-16 06:48:23 |
| Status | C | ULS 1877721 | 2026-08-16 06:48:23 |
| Service | IG | ULS 1877721 | 2026-08-16 06:48:23 |
| Grant Date | 2011-01-19 | ULS 1877721 | 2026-08-16 06:48:23 |
| Expiration Date | 2021-02-23 | ULS 1877721 | 2026-08-16 06:48:23 |
| Cancellation Date | 2012-05-08 | ULS 1877721 | 2026-08-16 06:48:23 |