Universal Licensing System
WDU644
Pacific Bell Telephone Company d/b/a AT&T California
License details
| ULS identifier | 974023 |
|---|
| Call sign | WDU644 |
|---|
| Radio service | CF |
|---|
| Status | A |
|---|
| Grant date | 2020-07-14 |
|---|
| Expiration | 2030-08-01 |
|---|
| Frequency range | 10715 - 10815 MHz (3 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | ASH MOUNTAIN, TULARE, CA |
|---|
| Coordinates | 36.4905556, -118.8256389 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-17 04:22:12 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 2 | FXO | 10715.00000000 | | | | | |
| 1 | 4 | FXO | 10735.00000000 | | | | | |
| 1 | 4 | FXO | 10815.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 2 | 10715.00000000 | | 30M0D7W |
| 1 | 4 | 10735.00000000 | | 40M0D7W |
| 1 | 4 | 10735.00000000 | | 40M0D7W |
| 1 | 4 | 10735.00000000 | | 40M0D7W |
| 1 | 4 | 10735.00000000 | | 40M0D7W |
| 1 | 4 | 10735.00000000 | | 40M0D7W |
| 1 | 4 | 10735.00000000 | | 40M0D7W |
| 1 | 4 | 10735.00000000 | | 40M0D7W |
| 1 | 4 | 10735.00000000 | | 40M0D7W |
| 1 | 4 | 10735.00000000 | | 40M0D7W |
| 1 | 4 | 10735.00000000 | | 40M0D7W |
| 1 | 4 | 10815.00000000 | | 40M0D7W |
| 1 | 4 | 10815.00000000 | | 40M0D7W |
| 1 | 4 | 10815.00000000 | | 40M0D7W |
| 1 | 4 | 10815.00000000 | | 40M0D7W |
| 1 | 4 | 10815.00000000 | | 40M0D7W |
| 1 | 4 | 10815.00000000 | | 40M0D7W |
| 1 | 4 | 10815.00000000 | | 40M0D7W |
| 1 | 4 | 10815.00000000 | | 40M0D7W |
| 1 | 4 | 10815.00000000 | | 40M0D7W |
| 1 | 4 | 10815.00000000 | | 40M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 47048 Ash Lane, ASH MOUNTAIN, TULARE, CA | 36.49055556, -118.82563889 | 515.400 m | MTOWER | 4.000 m structure / 4.900 m overall | N |
| 2 | R | | 36.55000000, -118.77175000 | 2033.300 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 2 | 1 | T | RFS DAX6-107A | | V | 43.8000 | 36.2000 | | |
| 2 | 2 | R | RFS DAX6-107A | | | 43.8000 | | | |
| 4 | 1 | T | RFS DAX6-107A | | V | 43.8000 | 36.2000 | | |
| 4 | 2 | R | RFS DAX6-107A | | | 43.8000 | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | NOC RADIO DESK - 2315 SALEM ROAD, CONYERS, GA | ROCKDALE | 7706022311 |
Special conditions
| Type | Condition code |
|---|
| P | 4020 |
| P | 5106 |
License history
| Date | File or call sign | Action |
|---|
| 2026-05-12 | WDU644 | LIMOD |
| 2026-01-23 | WDU644 | LIMOD |
| 2025-12-23 | WDU644 | LETCNS |
| 2025-09-26 | WDU644 | LIAUA |
| 2025-09-06 | WDU644 | LIAUA |
| 2024-09-23 | WDU644 | LIMOD |
| 2024-01-20 | WDU644 | LIAUA |
| 2023-01-14 | WDU644 | LIAUA |
| 2020-12-04 | WDU644 | LIMOD |
| 2020-11-04 | WDU644 | LIMOD |
| 2020-07-14 | WDU644 | LIREN |
| 2020-05-11 | WDU644 | LETRES |
| 2018-09-18 | WDU644 | LIAUA |
| 2017-08-19 | WDU644 | LIAUA |
| 2016-05-06 | WDU644 | LIMOD |
| 2014-10-21 | WDU644 | LIAUA |
| 2014-10-20 | WDU644 | ESUAPR |
| 2013-08-14 | WDU644 | LIAUA |
| 2013-08-14 | WDU644 | ESUAPR |
| 2013-02-12 | WDU644 | LIAUA |
| 2013-02-11 | WDU644 | ESUAPR |
| 2012-11-29 | WDU644 | LIAUA |
| 2012-11-29 | WDU644 | ESCAPR |
| 2012-11-28 | WDU644 | EFUAPR |
| 2012-11-28 | WDU644 | ESUAPR |
| 2011-03-24 | WDU644 | AUTHPR |
| 2010-07-13 | WDU644 | LIREN |
| 2010-05-10 | WDU644 | LETRES |
| 2006-03-17 | WDU644 | ESCAPR |
| 2006-03-17 | WDU644 | LIAUA |
| 2006-03-16 | WDU644 | EFUAPR |
| 2006-03-16 | WDU644 | ESUAPR |
| 2002-12-18 | WDU644 | LIMOD |
| 2001-08-21 | WDU644 | LIAUA |
| 2001-05-25 | WDU644 | LIMOD |
| 2001-01-23 | WDU644 | LIREN |
| 2000-11-13 | WDU644 | LETRES |
| 2000-03-17 | WDU644 | LIMOD |
| 1999-09-02 | WDU644 | LIAUA |
| 1999-08-13 | WDU644 | LICCNV |
| 1999-08-07 | WDU644 | COR |
| 1999-07-13 | WDU644 | COR |
| 1997-10-30 | WDU644 | LITRAN |
| 1993-08-31 | WDU644 | LIMOD |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 974023 | 2026-08-17 04:22:12 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WDU644 | ULS 974023 | 2026-08-17 04:22:12 |
| Status | A | ULS 974023 | 2026-08-17 04:22:12 |
| Service | CF | ULS 974023 | 2026-08-17 04:22:12 |
| Grant Date | 2020-07-14 | ULS 974023 | 2026-08-17 04:22:12 |
| Expiration Date | 2030-08-01 | ULS 974023 | 2026-08-17 04:22:12 |